It’s mid-season now, so this weekend I’m giving the garden a boost by side dressing everything with some ewe poo and topping it off with fresh pea straw… [I think this is in Australia. It took a moment before I got it that it is female sheep poo!]x
May, June, starts feeding time! First let’s go over some general considerations and methods of sidedressing, then we’ll go through the summer favorites Feeding Schedule, in detail, plant by plant.
Local Conditions Super soil, short summer, no feeding necessary. But if you have a long growing season of heat tolerant varieties like here in SoCal, plants making big leaves and lots of fruits, or plants that are harvested for their leaves, like summer lettuces, they need food! And that all depends on your micro niche where you are growing at home – some spots are hotter than others, maybe get more sun. Your plant produces more or less, needing more or less feeding. If your soil is not the best, feeding more frequently makes sense. And, so, give the best kinds of feeding you can – quality compost you made yourself if possible. If you plant densely, your plants are competing for nutrients, they will likely need more fuel, more frequently!
Varieties make a difference too! Long season indeterminate tomatoes, will likely do better with late season feeding. Early varieties, determinate tomatoes or bush beans, may not need feeding at all. Heavily and continuously producing pole beans make their own Nitrogen, but that may not be quite enough near their end of season or in very poor soil. If they start to slow down, the leaves yellow a bit, try a feed and see if they perk up. Near the end of the season feeding may not help.
Seasonal Timing Classic times to feed are at transplanting, blooming and just after fruit sets. Baby plants need more Nitrogen. They need to grow big, have a strong body to support all that fruit and make leaves! When it comes to blooming and fruiting your plant is beginning to work hard. We don’t need a lot of leaves now. Lay back on N and give your plants a good feed of more PK, Phosphorus for blooms and Potassium for disease resistance. NPK needs to be highest in P now.
Later in the season, if/when your plants are looking tired, slowing down, a feed can perk them up, extending their production time. Be sure other factors are well tended. Keep plants weeded so weeds don’t siphon off your plants’ food, especially when your plants are babies. Separate or thin young plants so they aren’t struggling for the same food. Early on use dark mulch to warm your soil, keep the soil moist, prevent light germinating weed seeds from starting. Weed out what does come up. Later in the season lay down reflective mulch like straw so your plants’ roots stay cool. See Mulch – Some Like it Hot!
Your plants need adequate soil moisture so their roots can take up nutrients. Water after you feed and keep your soil as moist as that plant needs.
Feeding Methods aka Sidedressing
There are a couple ways to feed. Feeding your soil feeds your plants. Here are some equivalents: One handful of good compost per plant. That is equal to about one tablespoon of 5-10-10 fertilizer. Liquid fertilizer, ie fish emulsion, in your watering can is an easy way to side dress. Compost tea is redundant, since you already put compost in your soil, but a cupful of a mixed tea adds all sorts of things your compost doesn’t have.
Foliar feeding garden tea blends is a super enrichment that offers more options of trace factors. Even if proper nutrients are present in the soil, some nutrients cannot be absorbed by plants if the soil pH is too high or too low. Compost corrects soil pH issues and is one of the best ways to maintain the 6.5 ideal. Foliar feeding saves your plants while compost is doing its job. Foliar feeding is an immediate way to revive and stimulate stressed, tired, or diseased plants. If you have an ailing plant, repeated treatments can get your plant up to par soonest! Feed before sunlight gets on your plants if possible, on a non windy day. You want the leaves to stay wet long enough for the nutrients to be absorbed. See Teas! Compost, Manure, Worm Castings Brews!
Foliar Feeding Facts per Planet Natural:
• Tests have shown that foliar feeding can be 8 to 10 times more effective than soil feeding.
• Up to 90% of a foliar-fed solution can be found in the roots of a plant within 1-hour of application.
• Foliar supplements are an effective way to compensate for soil deficiencies and poor soil’s inability to transfer nutrients to the plant.
Sidedressing during the growing season happens well after your plants are in the ground. It is not a time to be digging up the area around your plant and adding amendments. Do very little to disturb the majority of the soil out to the dripline of your plant. Digging breaks the surface feeder roots that contribute the most to your plant’s nutrition. Your plant goes hungry and sometimes doesn’t produce much, or stops producing. The best way to feed your soil at this point is to pull back any mulch, put on a 1-2″ layer of compost, 1/4-1/2″ layer of composted manure, 1″ or more of worm castings! Cover with 1-2″ mulch, to hold it all in place, keeping the distribution equal. Water well. That also acts as a tea effect as the nutrients drizzle into the soil. DO NOT dig up the soil. That’s the whole point. The surface feeding roots will have a grand time, your plant will perk up, recover from diseases as possible. Keep that soil moist unless it harbors bacterial diseases. If so, let it dry some between waterings. Totally dry roots can’t uptake nutrients.
It makes sense to improve your soil base, AND do foliar feedings that feed well when soil is poor and your plants have trouble with nutrient uptake due to unbalanced soil, your soil lacks water holding capacity, your plants are diseased and need immediate help while the soil is being improved.
If you are container gardening, or have seedlings, use a spray bottle. If you are growing in the ground, get a watering can with a nozzle that rotates to spray UP under your plants’ leaves where some pests live. What goes up between the leaves will fall down and do the tops of the leaves at the same time! In other words, foliar feed your whole plant!
Applying granular fertilizers: Scatter 8 inches away from the base of the plant on the side of the row or around the plant to just beyond the plant’s drip line to encourage root growth. Apply evenly. Raking the fertilizer into the soil is better than just applying on top of the soil, but rake very gently and not deeply to avoid breaking tiny surface feeder roots.
Some say most granular fertilizers leach from the soil rather quickly due to watering. That is why the instructions say you should reapply periodically throughout the season. Time release pellets do better. But adding organic material to your soil not only adds nutrients, it loosens the soil, attracts worms and other soil building critters and helps your soil retain moisture and nutrients.x
Summer Feeding Schedule Details for Your Favorites!
Beans Cucumbers Eggplant Lettuces Melons Peppers
Squash – Summer/Winter Strawberries Tomatoes
Beans
Beans make their own Nitrogen, though sometimes not enough when they are in heavy production and it is toward the end of summer. They don’t make their own Phosphorous or Potassium. They make a huge plant from a small short set of roots. A light balanced feed may be in order for them to keep their perk and production up as summer goes on.
Yellowing, mildew, white flies, ants and aphids? Pests may set in when a plant is stressed or weakened, but pests also like plants in peak condition! Do Aspirin and powdered milk sprays to up their immune system. Add baking soda to alkalize their leaves for mildew prevention. Best to do these treatments every couple of weeks, after significant rains and before trouble arrives! See more!
Tea mixes are good for improving their general health. Just imagine, with all those leaves, what foliar feeding can do! Same for those cucumbers below the beans in the image!
Cucumbers
Some gardeners prepare their cukes, melons, squash, peppers and tomato soil well in advance, in fall for spring! Compost in place – pile on manure, chopped leaves and grass, sprinkle on coffee grounds and kitchen scraps, wood ashes from winter fires, etc. In spring dig a foot square hole, fill with your luscious compost, plant your seed right in that compost! Lasts all season if you live in a short season area, and no compost is wasted where no plant is planted! As long as you get that compost out to just beyond the feeder root area your mature plant will have, it’s good.
You can use granular fertilizers, but cucumbers are generally short rooted needing constant 2-3 day waterings. The fertilizers are leached away. Time release pellets might do better. Instead, nearby, not right at the roots (you don’t want to damage them), add castings plus a tad of composted manure, cover with compost to feed and retain moisture. Then cover your amendments with a layer of moisture retaining mulch. Research shows, for cucumbers, straw mulch might slow cucumber beetle movement from one plant to another! Plus, it is great shelter for wolf spiders, daddy long legs and other predators. The more spidies, the more healthy your garden!
Additionally, a quick uptake Foliar feeding mixed teas feeds the whole plant with no harm to the roots at all! If your soil is poor, this can help a lot. Near the roots you can install a little 2-3″ deep trench to hold some extra water for your big vines.
Feed your cukes when they first begin to run (form vines and sprawl); again when blossoms set. A big vined short rooted, long fruited variety of cucumber, in a long summer is a heavy feeder, so some gardeners recommend to fertilize once a week! A small fruited, small leaved patio type container cucumber may need little to no feeding.
Cucumbers are quite susceptible to mildews so do the Mildew Mix as well – Powdered Milk, Baking Soda, Aspirin, Soap – add liquid fertilizer if you like, maybe fish/kelp emulsion. Do both the compost and foliar feeding – alternate the Tea with the Mildew Mix every other week or so! If you use fish/kelp be sure to protect your plant from being dug up by raccoons, possums or skunks. A strong deeply anchored enclosure may be called for. Plant far enough away from the edge of the enclosure so your plant can’t be dug up from under the edge.x
Exotic Eggplant
Those eggplant beauties need extra compost and a bit of well-rotted manure at planting time. Dig it in! Apply a general purpose fertilizer in the spring when you till the soil. Add additional applications every three to four weeks. Side dress frequently, especially when the plant begins to bloom. Or sidedress with a Nitrogen fertilizer when the plants are half grown and again immediately after harvest of the first fruits. Or, depending on your soil, feed your eggplants 3 weeks after planting and at blossom set. Given sufficient moisture and good food, eggplant thrives in the heat of summer!
Epsom Salts, Sulfur, is a cheap home remedy that can keep plants greener and bushier, enhance production of healthier fruit later in the season, and potentially help reduce blossom-end rot. You could apply 1 tablespoon of granules around each transplant, but research has shown a foliar spray of a solution of 1 tablespoon Epsom salts per gallon of water at transplanting, first flowering, and fruit set is more effective! As a foliar spray, Epsom salts can be taken up quickly by plants, otherwise, it is sometimes hard for the plant to get it out of the soil because of calcium competition.
Sulfur, a key element in plant growth, is critical to production of vitamins, amino acids (therefore protein), and enzymes. Sulfur is probably the oldest known pesticide in current use. It can be used for disease control (e.g., powdery mildews, rusts, leaf blights, and fruit rots), and pests like mites, psyllids and thrips. Sulfur is nontoxic to mammals, but may irritate skin or especially eyes. CAUTIONS! Sulfur has the potential to damage plants in hot (90°F and above), dry weather. It is also incompatible with other pesticides. Do not use sulfur within 20 to 30 days on plants where spray oils have been applied; it reacts with the oils to make a more phytotoxic combination.
This mix is super for tomatoes, eggplant, peppers and roses!x
Cut & Come Again! Lettuce is a hard working plant!
It likes water and manure! Regularly. Water just about every day, even twice a day on the hottest or hot windy summer days. Hand scratch in some 1/2″ deep grooves, with one of those little 3 prong scratcher cultivator tools. Drizzle chicken manure into the grooves, cover back up and water gently. If your lettuce is planted densely that’s going to be a little challenge. A Tea Mix might work better for you. Use the spout of your watering can and get it under the leaves so the soil is moistened. DO NOT do a foliar application of any tea mix that has animal poo in it on any plant you eat the leaves of! If you have space between your plants, and no fish loving predators like raccoons or skunks, or your lettuce patch is safely enclosed, a fish emulsion/kelp feed is good – just keep it off the leaves.
Feed three weeks after germination, or transplant.
Loose-leaf after second and third cuttings for cut-and-come again crops.
If head lettuce, when the head starts forming.x
Luscious Melons
Unless you are planting mini Melons, container varieties, Melons are a big plant, big leaves, big fruits, on a long vine!
Before planting large melon varieties, add in a little extra compost, and leaf mold, some well rotted manure, cow manure if you can get it.
Fertilize big melons every two to three weeks before blooming starts, using an all-purpose 5-5-5 fertilizer. If you are using mulch, pull it back, sprinkle on some worm castings and add several inches of compost to root areas monthly. Put the mulch back and water it in. If you are not using mulch, put on a light covering of mulch over your amendments to keep them moist. It’s like giving your plant compost/worm tea as the water and compost/worm juice drizzle down into your soil!
Better yet is 2 to 3 days before you sidedress, make a mixed tea sans compost! When the tea is ready, put some spade fork holes in the root zone around your plant. Fill the holes with compost/castings. Foliar feed the tea to your plant and pour tea into the spade fork holes! Of course, the very best is to do both – layers of compost and castings plus the tea and spade fork holes!! Especially sidedress melons when blooming starts and every 6 weeks after. They are hard workers!
Another method is to feed when they begin to run; again a week after blossom set; again three weeks later. This probably works well for mini melons too.
Once the first fruit ripens, stop all watering. Too much water at ripening time dilutes the fruit’s sugars and ruins the sweet flavor. The melons don’t need the water because they develop a deep root system soon after they start to flower. This means you stop fertilizing just before then. Your plants need soil moisture so their roots can take up nutrients, so there is no point in fertilizing after you stop watering.x
Fabulous Peppers!
Peppers need VERY RICH SOIL, are heavy feeders! Place compost for water holding capacity, worm castings, rotted manure under them when transplanting. Mix in Maxi Crop, and Island Seed & Feed Landscape Mix if you are in Santa Barbara area. Sandy soils are preferred for the earliest plantings because they warm more rapidly in the spring. Heavier soils can be quite productive, provided they are well drained and irrigated with care.
Epsom Salts! Rather than in the soil, do foliar Epsom Salts! A cheap home remedy that can keep plants greener and bushier, enhance production of healthier fruit later in the season, and potentially help reduce blossom-end rot. You could apply 1 tablespoon of granules around each transplant, but research has shown a foliar spray of a solution of 1 tablespoon Epsom salts + a 1/2 teaspoon of liquid dish soap (Dawn) per gallon of water at transplanting, first flowering, and fruit set is quite effective! As a foliar spray, Epsom salts can be taken up quickly by plants, otherwise, it is sometimes hard for the plant to get it out of the soil because of calcium competition. See Eggplant above
Sidedressing Peppers need fertilizer in small doses, a rich organic fertilizer when blooms appear. If you scratch in some compost, be careful not to damage near-the-surface lateral feeder roots. Liquid chicken manure is high in nitrogen and potassium for heavy feeders like peppers. Big, sweet peppers require a continual source of nutrition. The easiest way to fertilize them is to incorporate gradual-release fertilizer in the ground at planting. Fish-meal pellets, alfalfa pellets or cottonseed meal are all good organic choices. You also can foliar feed plants every week or two with a fish/seaweed soluble fertilizer, spraying the tops and bottoms of leaves, or water the ground with the same mixture.
At least, feed at three weeks after transplant; again after first fruit set.x
Super Squash
Another vining plant, like melons, huge leaves and vine, or patio minis! Big squash plants have the biggest leaves in the garden. They aren’t shy about growing 30′ or more!
Summer – Soft, Zucchini types, Chilacayote
We all know how prolific Zucchini is! That is a hard working plant! Some varieties make more fruit than others. Costata Romanesco, in the image, makes a zuke at every leaf join! Huge Chilacayote vines don’t quit! Even patio container varieties work their little hearts out!
Feed them when plants are about 6 inches tall; again when they bloom. That’s standard, but later in the season, if you still want more fruit, feed them again. If you are so tired of summer squash, never mind.
Like Cucumbers and Melons, summer and winter squash are also susceptible to mildew, so do the Mildew Mix for them too – Powdered Milk, Baking Soda, Aspirin, Soap – add liquid fertilizer if you like, maybe fish/kelp emulsion. Alternate the Tea with the Mildew Mix every other week or so!
See also Cucumbers and Melons above
Winter – Hard, Butternut, Acorn, Pumpkins
Give them a fat start with soil amended with well-rotted manure and compost prior to planting. These babies run all summer long, first making the dense fruits, then hardening the fruits. A healthy plant will make a lot of fruits, an ample supply for all winter long!
Feed them when the vine starts to run; again at blossom set.
See also Cucumbers and Melons abovex
Strawberries
Perfectly adorable image by Tricia was at Peaceful Valley Farm Supply
It’s just as the image says! At Pilgrim Terrace Community Garden we had a first time gardener that fed exactly that mix to his strawberries every 2 weeks and he was so proud to tell us he was harvesting strawberries by the shoebox full! His patch was not so big, but it was prolific with good sized berries! He later went on to sell his fine famed strawberries at Farmers Markets!
Be sure to protect your strawberries from predators – birds and furry animals! They both like the berries, but the animals are also attracted to fish emulsion. They dig up your plants looking for the fish! Bird, Animal, Insect Pests Above Ground Protection!
Tomatoes
Another heavy feeder, making zillions of tomatoes! If your plant is indeterminate, it will make fruit all summer long!
Before planting add plenty of well-rotted manure/compost.
AFTER planting, add a weak solution of complete fertilizer or fish emulsion to the soil around them. Continue to feed them two to three weeks after transplant; blossom time, again before first picking; again two weeks after first picking. Blossom time and after, go light on nitrogen or you will have a lot of leaf, no fruit!
Leaves curled lengthwise with patches of brown on them? Wilts or blights? Foliar feed with potent Tea Mix!!! When plant surfaces are occupied by beneficial microbes, there simply is no room for pathogens! The plant will suffer little or no blight, mold, fungus or wilt! That’s a huge claim! But even if it doesn’t entirely work, your plant will likely have a much improved existence for a longer period of time. Beneficial microbes compete with disease causing microbes. Go tigers! The live microbes enhance your soil and in turn, up the immune system of your plants.
If your plant is diseased or pest infested, you may need to apply your mixed tea every five to seven days. Otherwise, make your tea applications every two weeks until your plants start to flower. We want our plants to make fruit then, not foliage!
A dramatic treatment requiring less work than making tea is bleach once a week. It works! See about it!
This Table will help you save time! See at a glance which plants to feed at the same time with the same food. Copy and print, cover with clear waterproof tape, put it on your tool bucket for quick reference! See timing details above, plant by plant!
With any foliar feeds remember to add that 1/2 teaspoon of dish soap, surfactant, so the feed will ‘stick’ to your plant!
Stand back and take a look at your garden. See who’s the slowest, behind in production, lacks perk, and who looks vibrant, reaching for the sky! Grab a barrow of compost, make a super tea mix, go for the gusto! You could even note your feed date, then mark down about when to do it again!
To another super plentiful and most joyful summer!
Updated 5.26.23
Love your Mother! Plant bird & bee food! Think grey water! Grow organic! Bless you for being such a wonderful Earth Steward!
The Green Bean Connection started as correspondence for the Santa Barbara CA USA Pilgrim Terrace Community Garden. Both Santa Barbara’s remaining community gardens are very coastal. Climate is changing, but it has been that during late spring/summer we are often in a fog belt/marine layer most years, locally referred to as the May grays, June glooms and August fogusts. Keep that in mind compared to the microclimate niche where your veggie garden is.