Grow Light for Okra Seedlings: Warm Starts for Okra
A grow light for okra seedlings gives this warm season crop a head start where summers are short. Utah State University Extension advises starting seeds indoors 4 to 5 weeks before transplanting in short season areas. It suggests a bright, warm spot. Close light plus warmth gives sturdy starts.
The short answer
Soak okra seeds overnight, sow them warm plus set them under a light 2 to 4 inches above the tray. Clemson Extension suggests 16 to 18 hours of bright light for indoor transplants. Start 4 to 5 weeks before planting out. Transplant once soil reaches 75 F.
How much light do okra seedlings need?
Clemson Extension notes transplants grown indoors need 16 to 18 hours of bright light to grow stocky. It suggests a 2 to 4 inch gap between light plus plants. University of Minnesota Extension notes lack of light is the major cause of elongated, skinny stems. Raise the light as seedlings grow.
| Factor | Guide | Source |
|---|---|---|
| Indoor start | 4 to 5 weeks before transplanting | Utah State University |
| Seed prep | Soak overnight | Utah State University |
| Light height | 2 to 4 inches | Clemson Extension |
| Hours per day | 16 to 18 | Clemson Extension |
| Soil for planting out | At least 75 F | Utah State University |
| Planting out | 2 to 3 weeks after last frost | Utah State University |
Source: Utah State University Extension plus Clemson Extension.
Why do okra seeds need warmth?
Illinois Extension notes okra seeds do not germinate well in cool soils. Utah State University Extension notes greater yields come when temperatures stay above 65 F. Both advise soaking seeds overnight to speed germination. Illinois Extension notes okra seed does not store well, so buy fresh seed each season.
When should okra seedlings move outside?
Utah State University Extension advises planting 2 to 3 weeks after the last frost date, or when soil reaches at least 75 F. Illinois Extension suggests waiting until the soil has warmed, about a week to 10 days after the last frost. Harden off seedlings before planting.
How to: step by step
- Work back 4 to 5 weeks from your planting date.
- Soak seeds in water overnight.
- Sow in good potting mix in a warm spot.
- Suspend the light 2 to 4 inches over the tray.
- Set a timer for 16 to 18 hours.
- Plant out when soil hits 75 F.
Troubleshooting
Seeds not sprouting: cool soil or old seed. Use fresh seed in a warm spot.
Slow, uneven germination: unsoaked seed. Soak the seeds overnight before sowing.
Tall, skinny seedlings: too little light. Lower it to 2 to 4 inches.
For related reading see cannabis seedling light schedule, seedling heat mats for cannabis plus hardening off cannabis seedlings. Kind Seed Co also stocks cannabis seeds.
Sources
- Okra, Illinois Extension
- Okra in the garden, Utah State University Extension
- Starting seeds indoors, Clemson Extension
- Starting seeds indoors, University of Minnesota Extension
FAQ
Should okra seeds be started indoors?
In short season areas, yes. Utah State University Extension advises starting seeds indoors 4 to 5 weeks before transplanting outdoors. It suggests quality potting soil in a bright, warm area. In warmer regions, Illinois Extension notes seeds can go straight into the garden once the soil has warmed.
Should okra seeds be soaked?
Utah State University Extension advises soaking okra seeds overnight before sowing to speed germination. Illinois Extension notes seeds may be soaked in water or wrapped in moist paper towels overnight. If seed still fails after soaking, Illinois Extension notes okra seed does not store well, so buy fresh seed.
How far should the light be from okra seedlings?
Clemson Extension suggests a 2 to 4 inch gap between the light and the plants. It advises raising the light as the transplants grow to hold that gap. University of Minnesota Extension notes lack of light is the major cause of skinny stems, so a close light gives stockier starts.
How many hours of light do okra seedlings need?
Clemson Extension notes transplants grown indoors need 16 to 18 hours of bright light to grow stocky seedlings. University of Minnesota Extension advises against leaving lights on all the time, since many plants need a dark period. A timer runs the light on the same schedule each day.
When can okra go in the garden?
Utah State University Extension advises planting 2 to 3 weeks after the last frost date, or when soil reaches at least 75 F. Illinois Extension suggests about a week to 10 days after the last frost. Okra needs warmth, so wait for warm soil rather than an early calendar date.
