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Hoya carnosa Krimson Queen Splash is a rare and stunning cultivar of the ever-popular Hoya carnosa, native to Asia and Australia. Like other Hoyas, it is part of the Apocynaceae family and is admired for its colourful, variegated foliage and fragrant clusters of star-shaped flowers.
The Krimson Queen Splash variety is a sport of the classic Krimson Queen, but with an extra flourish: in addition to its creamy-white to pink margins, the leaf centres are decorated with irregular silver flecking and splashes. This gives each leaf a shimmering, painterly effect, making the plant truly unique. Some leaves may be heavily splashed, while others display subtle freckles every vine develops its own pattern.
Mature plants trail beautifully from hanging baskets or can be trained to climb a trellis. When established, they produce umbels of pink starry flowers with red centres, which are sweetly fragrant and long-lasting.
Thrives in bright, indirect light. The variegation and silver splash are most pronounced in strong filtered light. A few hours of soft morning or late-afternoon sun are beneficial. Avoid harsh midday sun, which may scorch pale margins.
Water when the top 23 cm of soil feels dry. As a semi-succulent, the plant stores water in its leaves, so it is tolerant of slight drought but dislikes soggy conditions. Reduce watering during winter.
Temperature: Best in 1828C. Protect from draughts and cold below 15C.
Humidity: Average household humidity is acceptable, but the plant thrives in 5070%. Increased humidity also encourages flowering.
Use a chunky, airy, free-draining mix orchid bark, perlite, coco husk, and a little compost works well. Hoyas prefer being slightly root-bound, so repot only every 23 years.
Feed monthly during spring and summer with a balanced fertiliser, switching to a high-potassium formula when encouraging blooms.
Prune to manage trailing vines and encourage branching. Never remove the flower peduncles (spurs), as Hoyas bloom from the same sites year after year.
A moderate grower with vines that can trail 12 m indoors. Flowers reliably appear on mature plants given bright light and stable conditions.
Loss of variegation: Insufficient light.
Shrivelled leaves: Prolonged underwatering.
Yellow leaves: Overwatering.
Pests: May occasionally attract mealybugs, aphids, or spider mites.
Hoya carnosa has been a houseplant favourite for generations thanks to its resilience and beauty. The Krimson Queen Splash is one of the most decorative cultivars, combining colourful margins with silvery splashes for foliage that remains striking even out of bloom.
Quick Care Summary
Light: Bright, indirect; tolerates gentle morning sun
Water: Allow topsoil to dry slightly; avoid waterlogging
Temperature: 1828C; avoid below 15C
Humidity: Average to high (5070%)
Soil: Chunky, airy epiphytic mix
Feed: Monthly in spring/summer; high-potassium for flowers
Growth: Trailing/climbing vine; green leaves edged in cream/pink with silver splash variegation; umbels of pink, fragrant flowers