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Soil Germination Temperatures Veggies Parsons

The graph above is of best soil temps for seed sowing! And even then, some seeds are more cold or heat tolerant, so get enough seeds to try again should there is some kind of fail.

Challenging conditions can be shady areas, or if you are intermingling veggies in your landscape, areas shaded by permanent ornamental plants. Transplants are already up and more hardy, sun reaching sooner, so your wise choice may be to start with transplants, not seedlings started outside. If you are container gardening, move your container to follow the sun during the day. Use one of those little plant dolly thingies if it is a heavy container.

String Beans 

DARK AND LIGHT-SEEDED BEANS: Dark-seeded beans are more resistant to rotting in cool soil than light-seeded beans. Beans need a minimum soil temperature of 65F to germinate well, otherwise rotting may occur.

Beans are crazy to grow! They will give you a good crop in soil that’s loamy, sandy, rocky, rich or poor and even in clay as long as it has good drainage. They do prefer slightly acid soil. Though beans do need regular water for their short roots, still, avoid planting them in shade with soil that stays wet.

When growing beans in a new garden site! Special tip from Bountiful Container: ‘With inoculant, the critical bacteria that enhance the plant’s ability to convert Nitrogen from air into N in the soil, are added to the soil. Either powder the inoculant on wet seed or sprinkle granules in the soil along with seeds. Grow stronger, produce more beans.’ Even simpler, if available, scatter a few spadefuls of soil from last year’s bean patch into new planting sites.

Beans like days to be at least 70 degrees and nights to dip no lower than 40 degrees. It’s worthwhile to wait until those conditions are met. Otherwise, you’ll have spotty germination and stunted, spindly plants. Beans grow so quickly that waiting for ideal temperatures will be worth some patience.

Cucumber VarietiesCucumbers

Warm, light, sandy loam soils are preferred for early production. Compost and composted manure is good. Cukes like moist well drained, fertile soil and need a pH above 6.0. A farmer says: Apply 6 to 10 pounds of fertilizer for each 100 foot of row, using care not to bring fertilizer into contact with the seed. A home gardener says: When I plant cukes, I dig out a hole, about a foot square, fill it with compost, and plant my seed right into the compost. No fertilizing the rest of the season and you’re not wasting fertilizer in soil between plants that the roots never touch.

A tropical vegetable, cucumbers thrive when the weather is hot and water is plentiful. If the weather is unseasonably cool, you can wait a while to mulch until the ground is warmed by the sun.

Sow seeds directly in the garden when daytime temperatures are at least 65 to 75 degrees. They are frost tender and should not be planted until the soil has warmed up to 65, some say 70 degrees! Cukes grow well in daytime temperatures in the 70’s, best at 81 F to 101.

Mini FYI: The inside of a cucumber can be up to twenty degrees cooler than the outside temperature. This is where the saying cool as a cumber came from!

Eggplant Purple Long Shiny Harvest BasketEggplant

Wherever you plant them, the key word for eggplant soil is ‘rich.’ Sandy loam or loam is lovely. Eggplants are greedy feeders; ideal eggplant soil is well-drained, rich in organic matter, including lots of well-rotted manure, and has about a neutral in pH. During the season, sidedress with extra compost. Keep the soil moist to promote maximum growth.

Eggplant do NOT thrive in very humid areas. Pollination is difficult when the weather conditions are very wet, overly humid or excessively hot.

The minimum soil temp needed for seed germination is 60 F. The optimum range is 75-90 F. 
Transplant at soil temp that is minimum 65F.

Place transplants in the garden slightly deeper than they were in their pot. Cold soil will shock the plant and set it back several weeks.

Eggplants are more susceptible than tomato plants to injury from low temperatures and do not grow until temperatures warm. They like temps to remain above 68 degrees, 70 to 85° F is even better.

Critical temperature for setting out eggplants isn’t the daytime high, but the nighttime low. Cool evenings will set back the seedlings’ growth and make them more susceptible to diseases. Wait until the evening temperatures are above 65 degrees before putting in seedlings. Cold temperatures will stop plant and root growth reducing plant vigor and yields. If your crop is still producing in the fall, cover them on cold evenings to extend the harvest.

Don’t be in a rush to mulch. Mulching too early in the season keeps the soil cool, resulting in slow growth, poor fruit set, and shallow rooting.

Peppers, either hot or bell, need VERY RICH SOIL, are heavy feeders!  Place compost, worm castings, rotted manure under them when transplanting. Mix in 1 T Epsom Salts, Maxi Crop, Landscape Mix.  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.

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. 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.

Peppers are Temp Particular! Hot peppers grow best in daytime air temperatures 65° to 85°F. Transplant when night time temperatures stay above 50 degrees, 55 is better. Below that plants grow very slowly, have yellowish, puckered leaves, and look sickly, often don’t recover. Night temps between 60° and 70° are best. In temperatures greater than 85°F, peppers may drop their blossoms although set fruit will ripen. The ideal temperature for peppers is a daytime temperature around 75°F and a nighttime temperature around 62°F.

At soil temperatures above 65 degrees, pepper growth accelerates. Plants may become stunted and never recover if either the soil or air temperature is much below 55 degrees.

  • Nighttime temperatures below 60 F or above 75 F can reduce fruit set.
  • Plumping up! Gardeners in hot regions will need to be especially patient with big bells and sweet roasting peppers. Both of these tend to wait until the nights are longer and cooler in late summer before fruiting and plumping up. These folks may want to plant banana peppers or sweet non-bells, which will ripen in time to use with those bumper crops of tomatoes and basil. Peppers need time on the plant to absorb nutrients and water and plump up their flesh, so pack your patience.
  • Color Changes! Mother Earth News says: After reaching their maximum size, green peppers that are meant to turn red, will develop red pigments in 10 to 28 days, if daytime temperatures are between 65 degrees and 75 degrees. In southern regions where temperatures exceed that range, peppers turn yellowish and may acquire an off-color pallor that is not attractive. Below the optimum temperature range, color development slows dramatically; below 55 degrees, it stops completely. If soil temperatures drop below 68 degrees, pigment production declines and eventually ceases.

Zucchini Summer Squash YellowSquashes grow best in full sun! They like rich well-drained soil, high in organic matter, and require a high level of feeding. Zucchini, in particular, produce a lot and get hungry!

Days need to be at least 70 degrees and nights to dip no lower than 40 degrees. Summer squashes grow best in air temperatures ranging from 60° to 75°F.

Plant in a warm soil. If the soil is below 60 degrees F., summer squash seeds are more likely to rot in the ground before sprouting. The ideal soil temperature for germination is 70-90 degrees F. A doable temp is 65-70F.

Tomatoes

Add a good dose of animal manures and compost, and my usuals – a huge handful of bone meal, a handful of non-fat powdered milk, worm castings, a tad of coffee grounds to the planting holes. This robust combo works well.  As they decompose, coffee grounds appear to suppress some common fungal rots and wilts, including FUSARIUM!  Go VERY LIGHTLY on the coffee grounds. Too much can kill your plants. It was found in studies, what worked well was coffee grounds part of a compost mix, was in one case comprising as little as 0.5 percent of the material. That’s only 1/2 a percent!

Temps are crucial! Tomatoes are not happy when there are

High daytime temperatures – above 85 F
High Nighttime Temperatures – above 70 F
Low Nighttime Temperatures – below 55 F

True, tomatoes are heat lovers, but per the University of NV, temperatures over 104 F, for only four hours, causes the flowers to abort! If you expect high summer temps, plant heat tolerant (“heat set”) varieties: Florasette, Heat Wave, Solar Set, Sunchaser, Sunmaster, Sunpride, Surfire. When temps are out of your tomatoes’ happiness range, they abort fruit set and go into survival mode, stop production. That’s why your plant may make no tomatoes for a period of time. Don’t think it is a quitter and pull it. It will start up again when temps lower.

High nighttime temps are even worse than high daytime temperatures because your plant never gets to rest.

In the spring, wait until nighttime temperatures are reliably above 55 F or protect your plants with a cover at night.

Soil Temperature ThermometerMany seeds can be presprouted. Presprouting is super and clever because you know you have plants! Germination in the soil can be spotty, so get fresh seed from a reliable source and presprout! It’s easy and terrific fun to watch the little ones appear! See more

Regions have huge variances in planting time strategies, and even in the same yard there are micro niches that vary considerably, so get a thermometer and plant in the right place at the right time! See more

With your Soil Thermometer, and good gardener self discipline, get your seeds and plants in the ground at their most productive times for your location! Here’s to abundant harvests!

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The Green Bean Connection started as correspondence for SoCal Santa Barbara CA USA Pilgrim Terrace Community Garden. All three of Santa Barbara city’s community gardens are very coastal. 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. Bless you for being such a wonderful Earth Steward!

Love your Mother! Plant bird & bee food! Think grey water! Grow organic!

 

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Salad Summer Veggies
Love your Mother! Plant bird & bee food! Capture water! Grow organic!

We have had a mild winter here in Santa Barbara and some hot March days, so many of us at Pilgrim Terrace Community Garden have planted early. It will be important to plant more rounds in a month or two to keep our table in fresh supply later on!

Soil temps at Pilgrim Terrace Community Garden are from 62 to 68 degrees now! Get yourself a little soil thermometer, and plant just at the right times in the right places. It makes the most difference to peppers. If planted too soon, sometimes they just never recover. Warm soil, 65°F+, and nighttime temps above 55°F is what they like! BEST PLANTING TEMPS PER VEGGIE! Night air temps are now close to holding 55°F and above. Soon. Very soon.

Start MORE seedlings indoors early April for late May/early June plantings. Okra is a good choice to seed now, plant in June. Sow seeds directly in the ground too! Transplanting is faster by six weeks! If seeds and tending seedlings aren’t for you, only get transplants and pop them right in the ground per their right times!

April 1 or as close to it as you can, start your Jicama seeds! Winter squash for sure. It needs time to grow big and harden for winter storage. Melons now but cantaloupe in May.

Eggplant, limas, okra and peppers, pumpkins! Transplant early-maturing varieties of beans, cucumbers, eggplant, melons, peppers, squash, and tomatoes. Sow and/or transplant asparagus, beets, carrots, celery, chard, corn, herbs, kale, kohlrabi, leeks, heat-tolerant leaf lettuce, okra, summer-maturing onions, parsley, peanuts, the last peas (choose a heat-tolerant variety such as Wando), white potatoes, radishes (with cukes to repel cuke beetles, and eggplant to repel flea beetles), rhubarb, and spinach. Choose heat and drought tolerant varieties when you can.

Keep ’em coming! If you have already done some planting, mid to late April, pop in another round! Poke in some bean seeds where your last peas are finishing, add cucumber seeds between the beans, plus dill at each end of the trellis to be there when you pickle your cukes! Plant radishes with the cukes to deter the Cucumber beetles. Plant corn in blocks, not rows, for good pollination! In a good hot area, lay in some cukes, melons or winter squash, to ramble among the corn, soon as they are tall enough. They all act as a living mulch, reducing water needs.

Trellis Cucumber SlantingSpread down a thick straw mulch to keep leaves and fruit off the ground, out of the insect zone. That is most importantly true for cucumbers. They are even more susceptible than tomatoes to the wilts fungi, die pretty instantly, in about 3 days, if they get infected. So when you plant them, treat them similarly to your tomatoes if you have wilts fungi in your garden. Keep the LEAVES OFF THE GROUND. Completely AVOID WATER SPLASH. Plant them on a raised mound/basin with good drainage. You can almost dry farm your tomatoes, but that won’t do for cucumbers, they need their water. If you are comingling them with beans, lower along a trellis, plant the beans between the raised mounds. Beans don’t get the wilts, but love the water. They are a big plant with continuous high production and small roots!

Another common technique for cukes, and melons, is to grow them up over a frame. The cukes are off the ground, hang and grow straight, are easy to harvest. As you see in the image, you can plant lettuces that prefer less heat but also love water, in the shade of your trellis.

Water Wise Practices!

  • Please always be building compost. Compost increases your soil’s water holding capacity.
  • This California drought year consider planting IN furrows, where the moisture settles. Plant crosswise to the Sun’s arc so the plants’ root areas will be slightly shaded by the depth of the furrow in early AM and late afternoon.
  • Make mounds with basins on top. Rather than losing water to evaporation from overhead watering, put the water right where it will do the most good and nowhere else. For larger leaved plants, put a stake in the center of the basin so you know where to water.
  • And, PLEASE MULCH. It keeps your soil cooler, moister, less water needed.
  • Sprinkle Mycorrhizae fungi right on the roots of your transplants when you put them in the ground. It increases uptake of nutrients, water, and phosphorus that helps roots and flowers grow and develop. Ask for it bulk at Island Seed & Feed in Goleta.

Natural Disease & Pest Prevention!

  • Be wise and pick the right plant varieties for your temps and conditions! Get heat tolerant, bolt resistant, drought tolerant, disease tolerant/resistant (VFN). If you are just starting, just start! You will learn as you go. Our climate is changing, so we are all adjusting and plants will be being hybridized, and hybridize naturally, for new climates. We can get varieties from other areas that are already used to conditions we will be having. Together we will do this.
  • Plant companion plants that repel pests, enhance each other’s growth so they are strong and pest and disease resistant. Mix it up! Less planting in rows. Split up groups so pests won’t go from one plant to the next, and the next. Think biodiversity!
  • Make top notch soil! Make compost. Grow worms for castings. In planting areas add tasty properly aged manure mixes. Add non-fat powdered milk for immediate immune system support at planting time; put in a finely ground bone meal for later uptake when your plant gets to flowering time. Sprinkle mycorrhizae fungi directly on transplant roots, all but Brassicas, at planting time to increase their uptake of nutrients and water.
  • Immediately drench your transplants, foliar feed, with a non-fat powdered milk, baking soda, aspirin, soap mix to jazz up their immune systems. Specially give your peppers an Epsom salt and soap mix bath. More details and all the recipes.
  • Maintenance! Keep your plants strong while they are working hard! Be ready to do a little cultivating composts and manures in during the season (called side-dressing), or adding fish/kelp emulsion mixes if you don’t have predator pests like skunks! Keep your plants watered and vibrant, but not so much as to make their leaves soft and inviting to munching insect pests. Trap gophers immediately if you are able.

Plant Bee Food, Herbs and Flowers! Sow or transplant basil, borage, chervil, chamomile, chives, cilantro, comfrey, dill, fennel, lavender, marjoram, mint, oregano, rosemary, sage, savory, tarragon, and thyme. Be mindful where you plant them… Mediterranean herbs from southern France, like lavender, marjoram, rosemary, sage, savory, and thyme, do well in hot summer sun and poor but well-drained soil with minimal fertilizer. On the other hand, basil, chives, coriander (cilantro), and parsley thrive in richer soil with more frequent watering. Wise planting puts chives where you need to repel Bagrada Bugs, by your broccoli, kale, but away from peas if you are still growing some. Cilantro, a carrot family workhorse, discourages harmful insects such as aphids, potato beetles and spider mites, attracts beneficial insects when in bloom. Dill is a natural right next to the cucumbers since you will use the dill if you make pickles. They mature about the same time. Let some of your carrots, lettuces, cilantro bloom! Bees, and insect eating birds and beneficial insects love them and you will get some seeds – some for the birds, some for you! Grow beauty – cosmos, marigolds, white sweet alyssum – all benefit your garden in their own way!

The glory of gardening: hands in the dirt, head in the sun, heart with nature. To nurture a garden is to feed not just on the body, but the soul.  Alfred Austin


The Green Bean Connection started as correspondence for the Santa Barbara CA USA Pilgrim Terrace Community Garden. We are very coastal, only a mile from the beach, and during late spring/summer in a fog belt/marine layer area most years, so keep that in mind compared to the microclimate niche where your veggie garden is. Bless you for being such a wonderful Earth Steward! 



Leave a wild place, untouched, in your garden! It’s the place the faeries and elves, the little people can hang out. When you are down on your hands and knees, they will whisper what to do. All of a sudden an idea pops in your mind….

In the garden of thy heart, plant naught but the rose of love. – Baha’U’Uah
“Earth turns to Gold in the hands of the Wise” Rumi

See the entire April 2015 Newsletter! 

March was a brilliant month at the garden! Enjoy some colorful Garden Images including a just born Swallowtail Butterfly!

Happy Spring gardening to you all! 

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