Black Velvet Rose Geranium seeds should be started indoors in early spring. Once the weather warms up in late spring to early summer, and night time temperatures are steadily above 10°C (50°F), the curious little seedlings can be transplanted outdoors.

Latin
Pelargonium x hortotum
Family: Geraniaceae

Difficulty
Easy

Season
Exposure: Full sun

Timing
Start seeds indoors about 6-8 weeks before transplanting out.

Starting
Sow seeds 5mm (1/4”) deep, using sterile seed starting mix. Use bottom heat until germination, and continue unless the room is particularly warm. Pot seedlings on into 4” peat or coir pots about 3 weeks after sprouting.

Growing
Harden off seedlings gradually over 1 week, once night time temperatures are consistently above 10°C (50°F). Geraniums are fairly hungry feeders that benefit from rich garden soil and regular feeding with liquid fertilizer or compost tea. Grow in full sun to achieve the best foliar colour.