'Rocky' is a fast-growing, wild-type arugula that grows in a compact rosette form. Wild arugula has a slightly stronger, more complex flavor than regular arugula, and is perennial in USDA zones 6—10. Its flavor can be described as peppery or mustardy with a hint of nuttiness. Tender baby greens are ready in 30 days, at 2″–4″ tall.
Botanical Name: Diplotaxis tenuifolia
Days to Maturity: 30–50 days
Native: Asia and Europe
Hardiness: Frost-tolerant perennial in USDA zones 6–10
Plant Dimensions: 8″–10″ tall at maturity
Variety Information: 2″–6″ soft, green leaves. Wild arugula has more deeply-lobed leaves than common arugula. Edible flowers are yellow.
Attributes: Good for Containers
When to Sow Outside: RECOMMENDED. 2 to 4 weeks before your average last frost date, when soil temperature is at least 40°F; ideally 50°–70°F. Successive Sowings: Every 3 weeks until 4 to 6 weeks before your average first fall frost date. Mild Climates: Sow in fall for winter harvest.
When to Start Inside: Not recommended.
Days to Emerge: 10–15 days
Seed Depth: ¼”
Seed Spacing: A group of 3 seeds every 6″
Row Spacing: 6″
Thinning: When ½” tall, thin to 1 every 6″
Harvesting: For the mildest, best-tasting baby greens, pick leaves when 2″-4″ long. Pick individually or cut off the plant at ground level. For the best flavor, harvest before plant begins to flower, unless you plan to eat the flowers.
This packet sows up to 280 feet. 1,680 seeds.