Hoya carnosa 'Krimson Princess'

Hoya Carnosa 'Krimson Princess'

The Hoya carnosa 'Krimson Princess' is a Hoya carnosa variant that features a white variegation pattern in the middle. This plant is not a naturally occurring one, rather, it is a selectively bred cultivar. The leaves are long and pointed, with a variegation pattern in the middle surrounded by a green border. When stressed by the sun, the H. carnosa 'Krimson Princess' developes a pretty reddish-purple coloration. 


The inflorescence is an umbel composed of drooping or erect flowers. The petals of these flowers range in colour from nearly white to a deep pink. They have the appearance of wax stars and are born in clusters. A dense covering of minute hairs gives the bloom a fuzzy look. They have a powerful aroma, and their blossoms may generate too much nectar and leak it.

H. carnosa, like all Hoya species, produces its blooms on spurs. These protrude from the axils of the leaves and stem; while flowers might not form immediately, buds will eventually form at the spurs' apexes. These spurs are used year after year to generate flowers, therefore, you shouldn't cut them off.

Umbels of ten to fifty tiny star-shaped blooms bloom on the same peduncle over the course of two to three weeks from early spring to late summer. In the early evening, the fragrance is at its peak.


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Scientific name: Hoya carnosa variegata

Common names: Krimson Princess

Origin: Thailand, India, China, Indonesia.

Flower colour: White to deep pink 

Genus: Hoya

Family: Apocynaceae (Asclepiadaceae)

Kingdom: Plantae

Type:Flowering vine

How to care?

Hoya carnosa 'Krimson Princess'

Indirect or filtered sunlight that comes from facing east is ideal for the Hoya Krimson Princess. When selecting soil, a chunky blend that includes perlite, pumice, and peat moss is ideal. Water your Krimson Princess when the top inch of soil becomes dry to the touch and maintain temperatures between 61 and 95 degrees Fahrenheit (16 and 35 degrees Celsius). Maintaining a relative humidity of 70–80% is recommended for optimal performance. Hoyas need organic fertilizer once a month during the growing season.


  • Bright, indirect light
  • Chunky, well draining soil
  • Humidity range 60-70%
  • Temperature range 60-95 degrees F
  • Low watering requirements

Hoya carnosa 'Krimson Princess' Detail

Light Requirements:

  • Brilliant indirect light or bright filtered sunlight is ideal for the H. carnosa 'Krimson Princess'. It's best to have a window that faces east. If you're unable to position your plant in front of a window but still want to cultivate it, a grow light is an option.

  • Keep in mind that the variegation does not aid the plant in photosynthesizing, so variegated plants require more light than their non-variegated counterparts.

  • Give a variegated plant a little more light than you would a non-variegated plant whenever possible.

  • For healthy growth of your H. carnosa 'Krimson Princess', bright light is essential. However, the leaves will burn if you leave it in direct sunlight.
  • If you wish to induce the sun stressed coloration, leave your hoya in early morning or evening sunlight for two hours.

Temperature Requirements:

  • The ideal temperature range for the Hoya Krimson Princess is between 61°F (16°C) to 95°F (35°C). They can't handle extremely cold temperatures, and they don't like quick temperature shifts.
  • It follows that they cannot withstand cold temperatures. Make careful to bring your Hoya inside before the first frost if you keep it outside.

Humidity Requirements:

  • Hoyas do well in areas with a lot of dampness. The high humidity needs of this stunning hoya won't be met by the majority of homes right out of the box.
  • However, there's no need to worry too much because you can easily increase humidity using one of the following tricks:
  • Put a pebble tray with water in it underneath the plant pot. The humidity around your plant will rise as a result of water evaporation.
  • Use a humidifier to boost humidity 
  • Group plants with comparable demands together.

Watering Requirements:

  • The watering needs for your Krimson Princess may differ significantly depending on your precise location and the environment in which you live.
  • To the finger test to determine if your hoya needs watering. 1-2 inches deep into the ground, insert your index finger. Do not water it if it is still moist. Water if it feels dry to the touch.
  • Additionally, your Krimson Princess will often require more water during the growing season (spring and summer) than during the off-season (autumn and winter). Nevertheless, it makes sense to water plants less frequently throughout the winter.
  • Never water your Krimson Princess when the soil is still moist is another wise maxim.
  • Water your Hoya well such that the water is running down the drainage pores of the pot when you give it a drink.

Soil Requirements:

  • Your Krimson Princess, like any other houseplant, should be planted in a potting mix with good drainage. Mix equal parts peat moss, vermiculite, and perlite if you're making your own soil. My experience with my Krimson Princess has taught me that an equal mix of these two components is optimal.
  • Particularly, the more chunky, lighter, and airier your final soil mix is, the better. What's most important is to have soil that is open and has good drainage.
  • Use the following additives to condition your soil:
  • Coarse sand keeps soil from becoming too compact.
  • Using coconut husk will keep your plant's roots from getting smothered. Allows air to reach the plant's roots.
  • Clay balls gives the dirt some chunk and opens it up.
  • Peat moss retains moisture, reduces soil hardness, and enhances water infiltration.
  • Vermiculite is advantageous for a number of reasons, including its ability to retain moisture, its ability to aerate the soil, and its aid in the release of supplementary fertiliser.

Fertilizing Requirements:

  • Use fertiliser that has a lot of potassium and phosphorus. As succulent-like plants like Hoya Krimson Queen only require small amounts of potassium, make sure the (K) number in NPK is low.
  • Remember to always use liquid synthetic fertiliser diluted at half the amount of what is recommended on the packaging for your houseplant to avoid any negative effects.
  • Additionally, whenever fertilising, err on the side of caution. Your plant can die if you overfertilize it. On the other side, underfertilizing is frequently not a major problem. In fact, a lot of people who own houseplants don't fertilise them at all.
  • Use an organic fertiliser to fertilise your Krimson Queen about once a month during the growing season (spring and summer).
  • Reduce or even stop fertilising your Princess in the fall and winter. During certain seasons, your Hoya's need for nutrients will be less.


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