Kohlrabi Purple Vienna Vegetable Seeds

KOHLRABI ‘Purple Vienna’ Vegetable Seeds

Botanical Name: Brassica oleracea var. gongylodes

‘Purple Vienna’ is a striking kohlrabi variety with beautiful purple skin and crisp, pale flesh. Its sweet, nutty flavour makes it a versatile addition to your vegetable patch. This cool-season crop develops smooth, globe-shaped stems that are best harvested when 10–15 cm in diameter.

Quick to mature and easy to grow, it’s perfect for gardeners across New Zealand. Whether eaten raw in slaws or lightly roasted, kohlrabi is a delicious, nutrient-rich choice that’s also high in vitamin C, fibre, and antioxidants. Best planted during the cooler months of spring and autumn.

• Early-maturing heirloom with vivid purple skin
• Sweet and crunchy flesh, ideal raw or cooked
• Quick growing and productive crop for cooler NZ seasons
• Rich in vitamin C, K, and dietary fibre
• Compact growth, suitable for raised beds or containers

Plant Details

• Plant Type: Annual cool-season vegetable
• Plant Height: 30–60 cm

Sowing Information

• Germination: 7–14 days
• Depth: Sow 1–2 cm deep
• Position: Full sun to partial shade
• Sow Where: Direct sow or start in seed trays and transplant
• Soil Type: Fertile, well-drained soil with pH 6–7; enrich with compost
• Spacing: 30 cm between plants; rows 60 cm apart

Growing Tips

• Keep soil evenly moist to prevent woody bulbs
• Thin seedlings early to allow bulbs to swell properly
• Mulch around plants to suppress weeds and retain moisture
• Feed with a balanced fertiliser every few weeks

Harvest

Harvest 60–70 days after sowing, once bulbs reach 10–15 cm diameter. Do not allow bulbs to become oversized or woody.

When to Sow Kohlrabi in Your NZ Region