Organic Non-GMO Kale & Collard Seeds::Organic Non-GMO Kale::Organic Olympic Red Kale
Kale Comparison Chart
||Days to Maturity
||21 days baby, 50 full size
||purple stems, slate-green foliage, deeply lobed, tender and smooth texture, sweet, this strain is excellent for baby leaf
||21 days baby leaf, 50 full size
||excellent taste, sweet, tender, hardy, tolerates wet soils
||30 days baby, 55 full size
||dark blue-green, compact dwarf curly kale reaches 2' tall, good for late harvest or over-wintering, good resistance to yellowing
||30 days baby leaf, 60 full size
||blue-green color, unique kale variety, bumpy leaf surface, this strain was improved by Frank Morton for superior vigor, yield and hardiness
||Dwarf Green Curled
||compact habit with tightly curled leaves and excellent flavor. Extremely cold hardy and high yielding, 18" tall
||long, narrow leaves with sweet mild flavor, tight curls and tender texture; easy to de-rib. Very frost tolerant
||very uniform stands; loosely curled tender leaves with aromatic flavor. Very cold-hardy; similar to Ripbor
||closest variety to Redbor F1, plants 16-18" tall, beautiful color and texture, holds well post-harvest
||vigorous, productive green curly type excellent for overwintering; extremely high yielding
||frosty blue-green leaves with purple stems. Extremely cold-hardy with good PM tolerance. Tall, open habit
||white stems, ruffled light blue-green foliage, very tender makes it the best kale for raw use, extremely hardy, rapid growth, flavor is nice all-season but improves with light frost
||unusual finely cut, lacy texture excellent for raw salads and garnishes.
||deeply lobed and frilly leaves with pink and purple stems; very cold hardy and slow to bolt
||superior commercial variety, compact plant with shorter node lengths, ruffled blue-green foliage, rapid re-growth, uniform leaf size, strong leaves, great for bunching, resists yellowing and leaf drop
Organic Kale & Collards - Growing and Seed Saving InfoPrintable version of this page
Insect pollinated biennial. Different kale varieties must be isolated by Ό mile in order to prevent cross pollination. Closer distances may be adequate if tree lines, woods or buildings are in between the different gardens. Allow plants to flower and set seed pods. Seeds are mature when black and the pods have begun to dry. Take care during seed harvest because the pods shatter readily when dry. Use a 1/8" screen to help with cleaning. Kale seed remains viable for 4-5 years under cool and dry storage conditions.
| Kale & Collards |
| Kale and collards are hardy biennials that will overwinter in milder climates, and improve in flavor with the onset of cold weather. They are in the Brassicaceae family, sharing species name Brassica oleracea with cauliflower, cabbage, broccoli, brussels sprouts, and kohlrabi. |
- Scotch - Deeply curled and wrinkled leaves. Very hardy.
- Siberian or Russian Flat leaves with lobed edges. Most tender.
- Lacinato Dark green savoyed blade shaped leaves.
- Collards More heat tolerant. Giant round leaves.
| Soil and Nutrient Requirements |
| Kale and Collards thrive in well drained fertile soil high in organic matter, with pH 6.0- 7.5. They can tolerate slightly alkaline soil. A general guideline is 2-3 lbs of 8-16-16 fertilizer over 100 sq ft of garden area two weeks before planting. If boron is not present in your soils, consider adding 1 Tbs per 100 sq ft. |
| Position |
| Full sun is best, although light shade can help plants tolerate hot weather. |
| Seeding Depth |
| 1/4-1/2". |
| Plant Spacing |
| Babyleaf- Direct seeding: ~60seeds/ft in 2-4" bands; Full Size- 12-18 |
| Row Spacing |
| 18-30 for full size |
| When to Sow |
| Days to maturity are from direct seeding, subtract 2 weeks if transplanting. Direct sow as soon as soil can be worked or start transplants 4 weeks before planting date. Plant baby leaf every 4-5 weeks for a continual harvest. Sow fall plantings two months before first expected frost for full size and up until frost for baby leaf. |
| Frost Tolerant |
| Yes. Kale is very hardy, withstanding even a hard freeze. Cold weather causes kale to become very sweet. |
| Drought Tolerant |
| Kale can tolerate drought, but the quality and flavor of the leaves will suffer. |
| Heat Tolerant |
| Collards are a better choice than kale for hot weather. |
| Seed Specs |
| 5,625-9,375 seeds/oz (7,500 avg), 90-150M seeds/lb (116M avg). |
| Seeding Rate |
| Babyleaf- 116 M seeds/100 bed (1 lb), 1.6MM seeds/1,000 bed (10 lbs) using ~1,000 seeds/ ft in 16 rows on a 36 bed. Full Size- 68M seeds/acre (12oz) using 3 seeds/10, 30 row spacing. M=1,000, MM=1,000,000 |
| Harvest |
| Harvest full size leaves when desired. Kale flavor sweetens after light frosts. Kale and collards are both very cold hardy, overwintering in most climates to some degree. |
| Storage |
| Cool leaves in cold water at harvest and store in plastic in fridge. In late fall, cut the heart of the plant and store just above freezing in a plastic bag for a few weeks. |
| Pest Info |
| Kale and collards do not usually suffer too much from pest damage, but they are subject to the same insect pests as cabbage, cauliflower, and broccoli. |
- Insect pests, including cabbage looper, imported cabbage worm, and diamondback moth are largely of the Lepidoptera order and can thus be controlled by Bacillus thuringiensis (such as Dipel DF) and/or spinosad, preferentially in rotation with one another to prevent build-up of resistant individuals.
- Flea beetles chew small holes in the leaves and are most detrimental when plants are young; use row cover (make sure edges are sealed) or application of Pyganic, neem or capsaicin products to control populations.
| Disease Info |
| In general, kale and collards do not suffer much from disease. They can be affected by Black Rot, caused by the bacterium Xanthomonas campestris and Club root, caused by the soil borne fungus Plasmodiophora Brassica. Prevention includes resistant varieties, crop rotation, removal or tillage of plant debris, eliminating cruciferous weeds, and handling plants in dry conditions. |
| Seed Saving Instructions |