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Houseplants · Evergreen tropical vine

Hoya

Hoya carnosa

Waxy, star-shaped flower clusters and glossy succulent leaves make Hoya carnosa one of the most rewarding and forgiving houseplants you can own.

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Sunlight
Bright indirect light
Water
Allow soil to dry halfway between waterings; roughly every 7-14 days
Harvest
n/a - grown for foliage and flowers
Hardiness
Zones 10-12; grow as a houseplant elsewhere
About

A Vine Worth the Wait

Hoya carnosa, commonly called the wax plant or porcelain flower, is a twining tropical vine native to East Asia and Australia. Its thick, waxy leaves store moisture, giving the plant a built-in buffer against missed waterings - a quality that made it a fixture in mid-century households and keeps it beloved today.

The real spectacle arrives when it blooms: tight, hemispherical clusters called umbels hold up to 30 individual star-shaped florets, each one porcelain-white with a rosy-pink center and a honey-sweet scent strongest in the evening. Flowers emerge from the same short spurs - called peduncles - year after year, so resist every urge to deadhead or remove them.

How to grow

Planting & care

Plant in a fast-draining mix - a blend of potting soil, perlite, and orchid bark works well - in a pot that fits snugly; hoyas bloom more reliably when slightly root-bound. Hang or trellis near a bright east- or west-facing window where it receives several hours of strong indirect light daily. Avoid deep shade, which suppresses blooming, and harsh midday sun, which scorches the leaves.

Water thoroughly, then let the top half of the soil dry out before watering again. In winter, reduce watering further to match the plant's slower growth. Feed monthly in spring and summer with a balanced liquid fertilizer diluted to half strength. High humidity (50%+) encourages lush growth, but the plant tolerates average household air without complaint.

Good to know

Don't Touch Those Spent Flower Spurs

After blooms drop, the peduncle (flower spur) left behind is not dead wood - it is a perennial structure that will produce next season's flower cluster from the very same point. Cutting it off is the single most common reason hoyas fail to rebloom. Leave all spurs intact and your patience will be sweetly rewarded.

Common questions

How much sun does Hoya need?

Hoya grows best in bright indirect light.

How often should you water Hoya?

Give it about allow soil to dry halfway between waterings; roughly every 7-14 days.

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