Clivia, a shade-loving perennial native to South Africa, blooms primarily in late winter to early spring. To encourage annual flowering, it's essential to mimic its natural habitat. The plant requires a distinct dormancy period with cooler temperatures (around 50–55°F or 10–13°C) and reduced watering for 6–8 weeks in fall. This triggers bud formation. Without this rest phase, Clivia may focus on foliage growth instead of blooming.
Clivia thrives in bright, indirect light but avoids direct sun, which can scorch leaves. During the growing season (spring to summer), place it near an east- or north-facing window. In fall, gradually reduce light exposure to simulate shorter days, reinforcing the dormancy signal. Insufficient light year-round can prevent bud development, while abrupt changes may stress the plant.
Temperature fluctuations are critical. During active growth (spring–summer), maintain 60–75°F (15–24°C). In fall, expose the plant to cooler nights (50–55°F) for 4–6 weeks to initiate flowering. Avoid sudden frost or prolonged heat above 80°F (27°C), which can disrupt the cycle. After buds appear, return to stable indoor temperatures to support bloom longevity.
Overwatering is a common barrier to blooming. Water deeply but infrequently during growth, allowing the top 1–2 inches of soil to dry between sessions. In fall, reduce watering by 50% to mimic dry seasons. Resume regular watering once flower stalks emerge. Soggy soil risks root rot, while drought stress during bud formation can abort flowers.
Feed Clivia monthly from spring to summer with a balanced, water-soluble fertilizer (e.g., 10-10-10) diluted to half strength. Switch to a low-nitrogen, high-phosphorus formula (5-10-10) in late summer to promote blooms. Stop fertilizing entirely during dormancy. Excess nitrogen encourages leafy growth at the expense of flowers.
Clivia blooms best when slightly root-bound. Repot every 3–4 years in spring, using a well-draining mix (e.g., orchid bark, peat, and perlite). Crowded roots signal the plant to reproduce (flower). Ensure pots have drainage holes to prevent waterlogging. Refresh the topsoil annually to replenish nutrients without disturbing roots excessively.
After flowering, deadhead spent blooms but leave the stalk until it yellows. Continue watering and fertilizing to support leaf growth, which stores energy for next year’s blooms. Rotate the pot periodically for even light exposure. Avoid moving the plant during bud formation, as this may cause bud drop.
Mealybugs and scale insects can weaken Clivia, reducing bloom potential. Inspect leaves regularly and treat infestations with insecticidal soap. Ensure good air circulation to prevent fungal diseases. Wipe leaves with a damp cloth to remove dust, which can block light absorption needed for flowering.
