Growing Plumeria Indoors

Can You Really Grow Plumeria Indoors?

Yes — with enough light. Plumerias grow indoors full-time or, more commonly, as indoor-outdoor plants that summer outside and shelter inside for winter — the usual routine for zone 9 growers in north Florida and Texas. The non-negotiables are bright light, fast-draining soil, and controlled watering.

Which Plumeria Varieties Are Best for Indoors?

The best indoor plumerias are compact, shade-tolerant varieties like Singapore White, Celadine, and Espinada. Our family has grown Hawaiian plumeria since 1995, and these are the ones we recommend starting with inside — you can browse available cuttings if you would like to try one.

How Much Light Does an Indoor Plumeria Need?

An indoor plumeria needs at least 6 hours of bright light a day — a south-facing window or a full-spectrum grow light. Light is the single most critical factor for plants grown inside:

• South-facing windows are ideal — they provide the most hours of direct sun.
• West-facing windows are the next best option for afternoon sun.
• East-facing windows work for maintaining plants but may not produce blooms.
• Grow lights can supplement natural light. Use full-spectrum LED lights for 10–14 hours/day.

What Container and Soil Do Indoor Plumerias Need?

Indoor plumerias need a pot with drainage holes and a fast-draining mix of 2 parts cactus soil to 1 part perlite:

• Use a pot with drainage holes — this is non-negotiable.
• Terra cotta pots are excellent because they wick moisture and prevent overwatering.
• Soil: 2 parts cactus mix + 1 part perlite for fast drainage.
• Use a saucer but empty it after watering — never let the pot sit in water.
• Start with a 1-gallon pot and upsize gradually. Plumerias bloom better when slightly root-bound.

How Do You Water Plumeria Indoors?

Water indoor plumerias sparingly — let the top 1–2 inches of soil dry completely before watering again. Indoor plants need less water than outdoor ones because there is less evaporation and no wind:

• Let the top 1–2 inches of soil dry completely before watering.
• Water thoroughly until it drains from the bottom, then empty the saucer.
• In winter, water even less — every 2–3 weeks for evergreen varieties, almost never for deciduous.
• When in doubt, wait another day. Far more indoor plumerias drown than dry out.

What Temperature and Humidity Do Indoor Plumerias Need?

Indoor plumerias want temperatures between 65–85°F and normal household humidity of 40–60% — and they are prone to spider mites when the air gets too dry:

• Keep temperatures between 65–85°F for active growth.
• Avoid cold drafts from windows, doors, and AC vents.
• Normal indoor humidity (40–60%) is fine. Avoid placing near radiators or heating vents that create very dry air.
• If air is very dry, occasional misting or a humidity tray helps — but do not keep leaves constantly wet.
• Inspect regularly for spider mites, which thrive in warm, dry indoor air.

How Do You Fertilize Indoor Plumerias?

Feed indoor plumerias lightly — they grow more slowly and need less fertilizer than outdoor plants:

• Use a bloom-boosting 10-30-10 fertilizer at half-strength every 3–4 weeks during the growing season.
• Stop fertilizing in winter.
• Flush the soil with plain water every 2–3 months to prevent salt buildup.