What is a hoya kerrii?
Hoya kerrii is a succulent-leaved climbing vine in the milkweed family (Apocynaceae), native to the tropical forests of Southeast Asia. It is famous for its thick, waxy, heart-shaped leaves — a shape so distinctive that single-leaf cuttings are mass-marketed as Valentine’s Day gifts. A full-grown plant is a slow, gorgeous vine with paired heart leaves that, with enough maturity and light, produces clusters of tiny, star-shaped, sweetly scented flowers like other hoyas.
Is hoya kerrii safe for cats and dogs?
Yes. The ASPCA lists Hoya kerrii as non-toxic to cats and dogs, so the sweetheart hoya is a genuinely pet-safe choice for a trailing shelf or climbing display in a home with animals.
Why won’t my hoya kerrii heart leaf grow?
This is the most common frustration with this plant. Single heart-shaped leaves sold at gift shops and florists are typically leaf cuttings without a node — the point on a stem where new growth originates. Without a node, the leaf can survive for years (sometimes a decade), but it is physiologically incapable of producing a stem or new leaves. It is a beautiful, long-lived novelty, but it will not become a vine.
To get a growing plant, look for a rooted cutting that includes a short piece of stem with at least one leaf node — these are sold at specialist nurseries and online. That cutting will eventually develop into a trailing vine.
How often should you water a hoya kerrii?
Water every 2–3 weeks, letting the soil dry out most of the way first. Like all hoyas, kerrii has semi-succulent leaves that store water — it tolerates drought far better than overwatering. Wrinkled or slightly soft leaves mean it is thirsty; yellowing leaves usually signal too much water. When in doubt, wait.
How do I get a hoya kerrii to bloom?
Hoya kerrii blooms from mature, full vines given bright indirect light and allowed to become slightly root-bound. The flowers emerge from peduncles (short flower stalks) — just like other hoyas, these spurs rebloom each season, so never remove them. Patience is essential: blooming requires a plant with multiple stems, several years of growth, and consistently good light.
How do I care for a hoya kerrii long-term?
Beyond careful watering, hoya kerrii is low-maintenance. It prefers Average to slightly higher humidity and temperatures above 60°F. Feed monthly in spring and summer with a diluted balanced fertilizer. Repot only when roots fill the pot — hoyas often bloom better when slightly root-bound. Wipe leaves occasionally to keep the waxy surface clean and free of dust.