How to grow Gloxinia

After flowering rest the plant by gradually reducing water until it becomes dormant. A corm should have formed and this can be replanted in the spring to grow again.
Water from below and do not allow to become too wet. Keep water off the hairy leaves.
Flowers in the first year. Use high potash fertilizer to promote flower buds.
Plants grow best in very light conditions but avoid direct sunlight which can scortch the leaves

Sow on the surface of fine compost, press into the surface only lightly and cover with a plastic bag. Wet the compost only from below and warm to 20C.

Soil temperature should be kept higher than 20°C / 68°F to ensure good germination.

At the two leaf stage transplant each seedling individually, into a mixture of compost and a little vermiculite, handling the seedling carefully by a leaf.
Grow on in pots, watering carefully so as not to wet the leaves or over wet the compost

Ensure that temperatures are mild (minimum night temperatures should be around 18°C / 64°F) and all chance of frost has passed before planting out, as Gloxinia is a tender plant.

Seeds are very tiny but can be saved. Plants will also grow from replanted corms and leaf cuttings

These estimates for how long Gloxinia takes to sprout, grow and harvest are from real observations from real gardeners, right around the world.

Florist's gloxinia

Sinningia speciosa (G. Lodd.) Hiern