Hibiscus sabdariffa GROW ZONES: 4-12 PLANT HEIGHT: Up to 6’ PLANT WIDTH: 36” SEED SPACING: 3” SEED DEPTH: Surface sow IDEAL TEMP: 70º-80º Germination: 7-14 days DAYS TO MATURITY: 70-90 (the colder your zone is the longer it takes) SOIL: well-composted with good drainage LIGHT: Full sun in spring. In Texas, plant it where it can receive some shade from the hottest summer sun as leaves will scorch. Open-Pollinated.
Planting Information:
In non-tropical grow zones, tea hibiscus is an annual, planted in the spring (April in central Texas) and harvested in October or November at which point you can retire the plant. In warmer zones, it grows as a perennial with harvests each year. You only need to grow one or two plants for a healthy harvest. If you really love it, or you’d like to gift the beautiful tea to friends, plant more. The plants do grow large so make sure to plan ahead.
If you live in central Texas, it is easiest to sow these directly in the garden once temps begin to warm in spring. I usually plant them in April. If you live in a colder zone, you should start them indoors to get a head start as tea hibiscus is extremely sensitive to frost and will not thrive if exposed to temperatures lower than 40º. Seeds germinate in about a week and once established require little attention until summertime, at which point you should keep them well-watered. Plant more than you need and then thin out the weakest seedlings and to get the spacing you most like.