Holsteiner Platter Cabbage Seeds 105

Description

Holsteiner Platter Cabbage Seeds

Scientific Name: Brassica oleracea

Family: Mustard

Type: Hardy Annual

Native Range: Canada; Greenland; Lower 48 States; Pacific Basin excluding Hawaii; Puerto Rico;

Hardiness Zones: 3-10; cole crops and their waxy leaves are particularly well-suited to colder growing regions, especially if adapted to the area; usually withstands a couple of frosts; even if outside of cabbage is frost-damaged, outer leaves can still be removed for edible cabbage;

Soil Requirements: Clay-loam soil with pH close to neutral; may require calcium or boron; heavy feeder and should have plenty of compost; mulching will help to keep soil evenly moist in hot weather;

Light Preference: Partial to full sun

Water: Keep evenly moist

Days until Germination: 5-17 days

Sowing: For early planting, start holsteiner platter cabbage seeds indoors with soil temperatures around 60°; plant about 1/4″ in soil; harden off transplants at around 4-5 weeks; transplant when 3-4 true leaves have shown; in cooler climates seeds can be direct-sown after the soil warms to 55°-60°, but if there is still a danger of frost make sure seedlings are covered; if direct-sown add 2-3 weeks to harvest date;

Plant Spacing: Plant seeds 4″-6″ but thin to 14″-24″;

Plant Height: 14″-18″

Harvest: 90 days from transplant; if head feels firm like softball when squeezed, it is ready; can remain unharvested but watch for splitting down the center–an indication the cabbage is trying to flower;

Grows Well With: Dill; celery; chamomile; sage; peppermint; rosemary; potatoes; beets; onions;

Grows Poorly With: Tomatoes; pole beans; strawberries; hyssop; thyme; wormwood; southernwood;

Potential Problems: Heat stress; seedlings must have enough light or they will get leggy and develop improperly after transplant; aphids; cabbage worms; loopers; root maggots; flea beetles; symphylans; white cabbage butterfly; clubroot;