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Hoya Kerrii (Sweetheart Plant) Care Guide

Published on April 25, 2025

Learn how to care for the charming Hoya kerrii, also known as the Sweetheart Plant, including tips on light, watering, propagation, and more.

Hoya Kerrii (Sweetheart Plant) Care Guide

The Hoya kerrii, commonly called the Sweetheart Plant or Valentine Hoya, is beloved for its adorable heart-shaped leaves and easy-going nature. Whether you have a single-leaf cutting or a full trailing plant, this guide will help you keep it thriving!

Hoya Kerrii full plant

Quick Care Overview

  • Light: Bright, indirect light (can tolerate some direct sun)
  • Water: Allow soil to dry out between waterings
  • Humidity: Average household humidity (40–60%)
  • Temperature: 65–80°F (18–27°C)
  • Soil: Well-draining cactus or succulent mix
  • Fertilizer: Monthly during growing season

Light Requirements

Hoya kerrii loves bright, indirect light but can handle some morning sun. Too little light will slow growth and reduce flowering.

Watering

Let the soil dry out almost completely before watering. Overwatering is the most common cause of problems—err on the side of underwatering.

Humidity & Temperature

Average home humidity is fine, but the plant appreciates a boost in drier climates. Avoid cold drafts and temps below 60°F (16°C).

Soil & Repotting

Use a cactus or succulent mix with added perlite. Repot every 2–3 years or when rootbound.

Fertilizing

Feed with a diluted, balanced fertilizer once a month during spring and summer.

Propagation

Propagate by stem cuttings with at least one node. Root in water or moist soil. Note: Single-leaf cuttings rarely grow into full plants.

Common Problems

  • Yellow leaves: Overwatering or poor drainage
  • Wrinkled leaves: Underwatering
  • No growth: Not enough light or only a single-leaf cutting

Fun Fact

Hoya kerrii can produce clusters of fragrant, star-shaped flowers when mature and happy!

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