How to Grow Turban Squash
Cucurbita maxima
Turban squash is a heavy-yielding warm-season crop prized for its distinctive flat, turban-like fruit and excellent storage life. Gardeners grow this heirloom variety to enjoy sweet, nutty flesh that keeps well through winter months when properly cured.
📷 Wikimedia CommonsStarting Turban Squash: indoors or direct sow?
🌾 Sow directly in the garden — Turban Squash is not usually started indoors.
Sow seeds directly into the garden only after the last frost date once soil temperatures have warmed sufficiently for this frost-sensitive warm-season crop.
Soil, care & harvest
Prepare loose, fertile soil with a pH between 6.0 and 7.0. As a warm-season crop, you must wait until after the last spring frost when the ground has warmed up significantly; do not sow early. Plant seeds directly outdoors at a depth of about one inch. Expect germination to occur within seven to fourteen days under these warm conditions.
Space plants forty-eight to seventy-two inches apart to allow vines to spread freely without crowding. These squash varieties generally grow on the ground rather than needing trellises or support structures. Maintain consistent moisture by providing one to one-and-a-half inches of water weekly, reducing frequency as fruits mature. Apply mulch around the base to retain soil moisture and suppress weeds.
Watch for squash bugs, cucumber beetles, and vine borers which can damage vines; use row covers early or hand-pick pests. Prevent powdery mildew and bacterial wilt by ensuring good air circulation and avoiding overhead watering. Harvest the large fruits approximately one hundred fifteen days after planting when they are fully colored and hard-shelled.
When to Plant Turban Squash
Planting windows vary by USDA hardiness zone. Look up yours by ZIP code.
| Zone | Start Indoors | Direct Sow | Harvest |
|---|---|---|---|
| Zone 1 | — | July – August | November – August |
| Zone 2 | — | June – August | November – September |
| Zone 3 | — | June – July | October |
| Zone 4 | — | June – July | October |
| Zone 5 | — | May – June | October |
| Zone 6 | — | May – June | September – November |
| Zone 7 | — | April – June | September – October |
| Zone 8 | — | April – May | August – October |
| Zone 9 | — | March – April | July – September |
| Zone 10 | — | February – April | July – August |
| Zone 11 | — | January – March | June – July |
| Zone 12 | — | January – March | June – July |
| Zone 13 | — | January – March | June – July |
Companion Plants for Turban Squash
✓ Good companions
Fixes nitrogen in soil which feeds heavy-feeding squash plants
Strongly repels squash bugs, cucumber beetles, and other common pests
Provides natural trellis for squash vines and creates beneficial microclimate
Repels nematodes and various harmful insects through root secretions
Acts as trap crop for squash bugs and cucumber beetles
Repels cucumber beetles and provides general pest deterrent properties
Deters squash bugs and cucumber beetles while breaking up soil
Attracts beneficial insects and provides wind protection for squash vines
✗ Keep away from
Strong herbs like sage can inhibit squash growth and development
Inhibits growth of most garden plants through allelopathic compounds
Competes for similar nutrients and space, may harbor similar soil-borne diseases
Nutrition Facts
Per 100g serving (USDA FoodData Central)
