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Purple Moon — Brassicas | DarkGrow Seed Bank

Name: Purple Moon
Brand: DarkGrow Seed Bank

62days to harvest

7-14 daysdays to germinate

Z6–9USDA zones

Easydifficulty

F1 hybrid

Sowing

Start indoors 6-8 weeks before last frost for spring crops; sow directly or transplant in midsummer for fall harvest

Cultivation

Sun: Full sun to partial shade (4-6+ hours)
Water: Regular, consistent moisture; 1-1.5 inches per week
Soil: Well-drained loam, slightly acidic (pH 6.0-7.0)
Spacing: 18-24 inches
Height: 10-24 inches
Season: Warm season annual

Appearance & flavour

Colour: Medium-dark purple
Shape: Compact rounded heads
Flavour: Mild, slightly sweet cauliflower flavor with tender texture; typically sweeter and more delicate than white varieties.

In the kitchen

Roasting, steaming, stir-frying, raw in salads, as an ornamental garden feature

Pests, disease & resistance

Pests: Cabbage worms, flea beetles, aphids, cabbage moths
Diseases: Clubroot, black rot, powdery mildew, downy mildew

Planting calendar by USDA zone

Zone	Start indoors	Transplant	Direct sow	Harvest
1	April – May	June – July	June – July	August – September
2	April – May	June – July	May – July	July – September
3	March – April	May – June	May – June	July – October
4	March – April	May – June	April – June	June – October
5	February – March	April – May	April – May	June – November
6	February – March	April – May	April – May	June – November
7	February – March	April – May	March – May	May – November
8	January – February	March – April	March – April	May – December
9	January	February – March	February – March	April – December
10	January	February – March	January – March	March – December
11	January	January – February	January – February	February – December
12	January	January – February	January – February	February – December
13	January	January – February	January – February	February – December

Companion planting

8 beneficial pairings indexed for this variety, 3 to avoid.

DillAttracts beneficial wasps that parasitize cabbage worms and aphids

OnionsRepel cabbage moths, aphids, and flea beetles with their strong scent

MarigoldsDeter cabbage worms, aphids, and other pests while attracting beneficial insects

NasturtiumsAct as trap crop for aphids and flea beetles, drawing them away from brassicas

LettuceGrows well in partial shade of brassicas and helps maximize garden space

CarrotsHelp break up soil and don't compete for nutrients with shallow-rooted brassicas

ThymeRepels cabbage worms and flea beetles while attracting beneficial predatory insects

RadishesFast-growing companion that helps deter flea beetles and root maggots

Avoid

TomatoesCompete for similar nutrients and may stunt brassica growth through allelopathy

StrawberriesCan inhibit brassica growth and compete for soil nutrients

Pole BeansMay shade brassicas excessively and compete for nitrogen

Nutrition (per 100 g)

Calories (per 100 g): 31
Protein (g): 2.57
Fat (g): 0.34
Carbohydrate (g): 6.27
Fibre (g): 2.4
Vitamin A (µg): 8
Vitamin C (mg): 91.3
Vitamin E (mg): 0.15
Vitamin K (µg): 102
Vitamin B6 (mg): 0.191
Folate (µg): 65
Calcium (mg): 46
Iron (mg): 0.69
Magnesium (mg): 21
Phosphorus (mg): 67
Potassium (mg): 303
Zinc (mg): 0.42
Selenium (µg): 1.6

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Where to buy seed and equipment

Some links are affiliate links. If you buy through them we may earn a commission at no extra cost to you.

Growing it? There is a full cultivation guide at the brassicas growing guide.

Cultivar facts compiled from public horticultural references including USDA GRIN and NC State Extension. Descriptions are original to this catalogue.

Purple Moon

Sowing

Cultivation

Appearance & flavour

In the kitchen

Pests, disease & resistance

Planting calendar by USDA zone

Companion planting

Avoid

Nutrition (per 100 g)

Where to buy seed and equipment

Grown Purple Moon?

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