Hoya macrophylla ‘Splash’ is a stunning tropical vine admired for its large, boldly veined leaves adorned with silvery splashes that glisten under the light. Native to the tropical rainforests of Southeast Asia, this species belongs to the Apocynaceae family and is one of the most distinctive Hoyas thanks to its broad foliage and intricate variegation.

The thick, waxy leaves are oval to elongated, with raised cream or lime-green veins running through a rich green background. The ‘Splash’ variety displays scattered silvery flecks or splashes across the leaf surface, giving it a shimmering, almost metallic finish. Mature plants produce clusters of small, star-shaped flowers — typically pale pink to white — that emit a sweet, honey-like fragrance.

Elegant yet easy-going, Hoya macrophylla ‘Splash’ makes an eye-catching statement as a trailing or climbing plant, bringing a modern, tropical charm to bright interiors, green walls, or plant shelves.

Hoya macrophylla ‘Splash’ – Care Guide

Light

Prefers bright, indirect light to enhance its silver variegation and leaf veining. A few hours of gentle morning sun is beneficial, but avoid harsh midday or afternoon rays that can scorch the leaves. Lower light will reduce the silvery “splash” markings.

Watering

Water when the top 3–4 cm of the soil is dry. The thick leaves store moisture, so Hoya macrophylla is drought-tolerant and more likely to suffer from overwatering than underwatering. Use room-temperature water and allow excess to drain completely. In winter, water sparingly to avoid soggy roots.

Temperature and Humidity

• Temperature: Ideal range 18–28°C. Protect from cold draughts and sudden temperature changes.

• Humidity: Thrives in moderate to high humidity (60–80%), but tolerates average indoor conditions. For optimum growth, mist occasionally or use a humidifier during dry months.

Soil and Potting

Use a well-draining, airy mix such as orchid bark, perlite, and coco coir or peat-free compost. The roots prefer a loose, breathable substrate to prevent rot. Pot in a container with drainage holes, and allow it to become slightly root-bound before repotting every 2–3 years.

Feeding

Feed every 4–6 weeks during spring and summer with a diluted balanced liquid fertiliser or one formulated for epiphytic plants. Stop feeding in autumn and winter when growth slows. A fertiliser slightly higher in phosphorus will support blooming.

Pruning and Maintenance

Prune lightly to shape and control growth, especially if vines become leggy. Avoid cutting off the peduncles (flower spurs) after blooming, as new flower clusters emerge from the same points each year. Wipe leaves occasionally with a damp cloth to maintain their glossy sheen and remove dust.

Growth and Maturity

A moderate to vigorous grower depending on light and temperature. It can reach 1–2 metres in length with support or when trained along a trellis. In ideal conditions, mature plants reward with clusters of fragrant blooms that last several weeks.

Common Issues

• Yellowing leaves: Overwatering or poor drainage.

• Wrinkled leaves: Underwatering or low humidity.

• Lack of blooms: Insufficient light or cutting off flower spurs.

• Pests: Occasionally attracts mealybugs or aphids — wipe affected areas and treat with neem oil if necessary.

Background and Benefits

Hoya macrophylla derives its name from its “macro” (large) and “phylla” (leaf) structure, a fitting description for its impressive, veined foliage. The ‘Splash’ cultivar is particularly sought after for its silver-flecked leaves that shimmer in bright light — a visual texture that’s both subtle and striking.

Like all Hoyas, macrophylla ‘Splash’ is not only ornamental but also air-purifying, helping to remove indoor toxins while releasing oxygen at night. Its easy-care nature makes it ideal for both new and experienced plant enthusiasts seeking a show-stopping yet forgiving houseplant.

✅ Quick Care Summary
Light: Bright, indirect light (avoid harsh direct sun)
Water: Let top 3–4 cm dry between waterings
Temperature: 18–28°C; avoid below 15°C
Humidity: Moderate to high (60–80%)
Soil: Airy, well-draining mix – bark, perlite, coco coir
Feed: Every 4–6 weeks in spring/summer
Growth: Trailing/climbing vine, 1–2 m; broad green leaves with silver “splash” variegation

⚠️ Toxicity Note: Contains mild latex sap that can irritate skin and is toxic if ingested. Keep away from pets and children.

🌿 Styling Tip:
Display Hoya macrophylla ‘Splash’ in a hanging pot or trained up a moss pole or trellis to show off its large, patterned leaves. Its cool-toned foliage pairs beautifully with warm-leaved companions like Philodendron ‘Lemon Lime’ or Aglaonema ‘Jazzy Red’ for a vibrant contrast.