How to Grow Luffa (Loofah)

Updated June 2026

A warm-season fruiting for the home garden across the warmer US.

What it looks like as it grows

Luffa (Loofah) is a rewarding warm-season crop for backyard growers.

When to plant

Plant Luffa (Loofah) in spring once the soil has warmed and all frost has passed. In the warmest regions a second crop is possible in late summer. See your region on the luffa (loofah) page for exact timing.

Varieties

Smooth Luffa, For sponges and young eating (Baker Creek)

How to grow it

Sun & soil: full sun, rich well-drained soil with even moisture.
Spacing: about 4.9 ft between plants.
Sowing: sow about 0.75 in deep.
Water: roughly 1.6 gal per plant every 3 days in hot weather.

Pests & problems

Watch for Aphids and Cucumber beetle. In humid regions, Powdery mildew can appear, so space for airflow and water at the roots in the morning.

Harvest

Luffa (Loofah) is usually ready to harvest in about 4 months. Pick regularly to keep plants productive.

When to plant in your region

Pick your region to see exactly when to plant luffa (loofah) where you garden.

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