Hoya Kerrii Identification Guide
Identify Hoya kerrii, the Sweetheart Plant, by its thick, succulent, heart-shaped leaves often sold as a single rooted heart.
Read the full Hoya Kerrii encyclopedia entry →
Key Identifying Features
Hoya kerrii, the 'Sweetheart' or 'Valentine Hoya', is instantly recognized by its leaf shape. Identify it by:
- Thick, succulent, distinctly heart-shaped (obcordate) leaves
- Leaves notched at the tip (inverted heart), not pointed
- Waxy, firm, fleshy texture in green or variegated forms
- Slow-growing vine, often sold as a single-leaf cutting
Leaves & Stems
The defining feature is the heart-shaped leaf with a dip/notch at the apex, 2-4 inches across, thick and water-storing like a succulent. Standard form is uniform green; a popular variegated form has creamy-yellow margins or centers. Single leaves are commonly sold rooted in tiny pots as novelty 'love' plants, but a full vine produces twining stems with paired heart leaves and aerial roots. Stems are green and somewhat woody with age; growth is slow.
Flowers & Fruit
Mature vines produce classic Hoya umbels of small star-shaped flowers, typically white to pale pink with a darker center, fragrant and sometimes nectar-dripping, on persistent spurs that rebloom. A single-leaf cutting (with no stem node) will never vine or flower because it lacks a growth point.
How to Tell It Apart from Look-Alikes
- Hoya carnosa / Rope Plant: waxy succulent leaves but oval or curled, never the flat heart shape.
- String of Hearts (Ceropegia woodii): thin trailing stems with small, thin, marbled heart leaves, far more delicate and not thick-succulent.
- Other heart-leaf houseplants (Philodendron hederaceum): thin, pointed-tip heart leaves, not thick notched-tip succulent hearts.
The thick, fleshy, notched heart leaf is unmistakable.
Where You'll Find It
Native to Southeast Asia (Thailand, Vietnam, Laos, and nearby), growing as an epiphytic climber. As a houseplant it wants bright indirect light, a chunky well-draining mix, and dry-between-waterings care like a succulent. You will find single-leaf 'hearts' sold around Valentine's Day, and full vines in collections.
Quick ID Checklist
- Thick, succulent heart-shaped leaves
- Notch/dip at the leaf tip
- Waxy, firm, fleshy texture
- Green or cream-variegated forms
- Slow-growing, twining vine
- Often sold as a single rooted leaf
Frequently asked questions
Will a single Hoya kerrii leaf grow into a full plant?
Usually not. A single leaf without a stem node has no growth point, so it stays as one rooted heart for years and will not vine or flower.
How is Hoya kerrii different from String of Hearts?
Hoya kerrii has thick, fleshy, succulent heart leaves with a notched tip, while String of Hearts (Ceropegia woodii) has thin, delicate, marbled heart leaves on wiry trailing stems.
Does Hoya kerrii flower?
Mature vines produce clusters of small, fragrant, star-shaped white-to-pink flowers, but a single-leaf cutting will not bloom.
Why is it called the Sweetheart Plant?
Its thick, perfectly heart-shaped leaves make it a popular Valentine's gift, often sold as a single rooted heart in a small pot.