Tuffy

Leek

90d to harvest

Sweet and gently oniony, Tuffy leeks form crisp, tender scallion-style stalks with a clean, bright snap. The edible portion stays pleasantly mild and succulent, with a smooth, fine texture that shines in fresh bunches and quick sautés, as well as in creamy sauces and savory soups. Grow Tuffy for a dependable 90-day harvest that delivers market-ready green tops and crisp white-to-light-green shafts in cool-season abundance.

Crop Dates

Milestone	Date
Start Indoors	Apr 3rd
Last Frost	May 15th
Transplant / Sow Outdoors	May 15th
Harvest Begins	Aug 13th
Harvest Ends	Aug 25th

Crop Details

Trait	Value
Days to Maturity	90
Sun Requirements	Full Sun
Growth Habit	Upright
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	70
Min Soil Temp (°F)	45
Min Night Temp (°F)	35
Harden Off (days)	5

Frequently Asked Questions

What pest or disease commonly affects Allium fistulosum (Tuffy scallions), and how can I control it?

A frequent issue on onions/scallions is onion thrips, which cause silvery streaks and distorted, weakened leaves. Treat early by spraying with insecticidal soap or horticultural oil, and remove any heavily damaged leaves to reduce thrips populations. If you see sticky, black sooty growth along with ants/scale-like clusters, check for sap-feeding insects and target them with the same insecticidal soap/oil program, repeating every 5–7 days for several rounds.

How often should I water Tuffy (Allium fistulosum) during its main growing phase?

During the active leaf-growing period, keep the soil consistently moist but not waterlogged—aim for about 1 inch (2.5 cm) of water per week, split into 1–2 watering sessions as needed. Water more lightly after each feeding so the top few inches don’t stay soggy, because consistently wet soil increases the risk of fungal leaf/neck problems. A simple check: if the top 1 inch of soil is dry, water; if it stays wet or mud-like, hold off until it dries slightly.

How do I know when Tuffy (Allium fistulosum) is ready to harvest?

Harvest when the plants have formed firm, well-developed hollow leaves and the clumps are about hand-sized; for Tuffy, this is typically around 90 days from sowing. For “scallion” style, cut leaves close to the soil and take the outer leaves first so the center can keep growing. If you wait too long for frequent cuts, leaves become tougher and thinner—so harvest promptly once the plants reach the desired thickness.