Hoya Varieties

What all hoyas share

Hoyas (wax plants) are a vast genus of tropical and subtropical epiphytes, native primarily to Southeast Asia and Australia. Despite their enormous variety in leaf shape, texture, and size, most share broadly similar care: bright indirect light, well-draining soil, watering when the top inch or two dries out, and a preference for being slightly rootbound. They bloom from fixed flower-bearing structures called peduncles; once a peduncle produces flowers and the blossoms drop, it will produce flowers again from the same point next season. Never remove old peduncles.

Hoya carnosa

The classic wax plant. Hoya carnosa has thick, glossy, oval leaves on long trailing vines and produces clusters of star-shaped, waxy flowers in pink and white with a sweet, honey-like fragrance. It is the most widely available hoya and the most forgiving: it tolerates lower humidity, inconsistent watering, and medium light better than most other species.

Several notable cultivars exist. 'Krimson Queen' has green leaves with cream or pink edges; 'Krimson Princess' reverses the pattern with cream centers and green margins. 'Tricolor' has leaves with pink, white, and green variegation. All variegated carnosa forms need brighter light than the solid green type to maintain their color and grow at a reasonable pace.

Hoya compacta (Hindu rope hoya)

Hoya compacta is a cultivar of H. carnosa where the leaves are tightly curled inward, creating a textured, rope-like appearance along the cascading stems. The flowers are identical to standard carnosa. It grows very slowly and the curled leaves create beautiful cascades in a hanging basket over time.

The curled leaves trap moisture and debris, so water carefully to avoid water sitting in the folds. More sensitive to overwatering than flat-leafed varieties. A variegated form (leaves with cream edges) is also available and grows even more slowly.

Hoya kerrii (Sweetheart hoya)

Hoya kerrii is famous for its thick, heart-shaped leaves. It is widely sold around Valentine's Day as a single leaf cutting in a small pot. Important caveat: a single leaf cutting of H. kerrii without a node will never grow beyond that one leaf. It survives for months or even years on the stored energy in the leaf, but it will not vine or produce new leaves. Only a cutting with a node and stem attached can grow into a full plant.

As a full plant, H. kerrii grows slowly with long vines of heart-shaped leaves and produces cream-pink, star-shaped flowers. It needs bright indirect light and handles drought well due to its thick, succulent-like leaves.

Hoya pubicalyx

One of the fastest-growing and most prolific blooming hoyas commonly available. H. pubicalyx has narrow, elongated leaves with silver or white flecking on the surface and produces large clusters of dark burgundy-pink flowers with a strong fragrance. It tolerates a wide range of conditions and blooms reliably with adequate light.

Several color forms exist, including 'Red Buttons' (deep red-black flowers), 'Pink Silver,' and 'Splash' (more pronounced silver flecking). All grow vigorously and reward bright light with frequent flowering.

Hoya bella (Hoya lanceolata bella)

Hoya bella has small, narrow, pointed leaves on thin, arching stems that cascade rather than trail long vines. The flowers are small, white with a pink-purple center, and sweetly fragrant. It is one of the most delicate-looking hoyas and is well suited to small hanging baskets.

It is more sensitive than carnosa or pubicalyx to cold and irregular watering. It prefers slightly higher humidity and is best kept above 60 F (15 C) at all times. A beautiful variety for experienced hoya growers looking for something more refined than the larger trailing types.

Hoya linearis

Hoya linearis is completely unlike the typical wax plant in appearance. Its leaves are long, thin, and slightly hairy rather than waxy, with a soft, almost grass-like texture. The vines cascade in fine, thread-like curtains. It produces clusters of small white flowers with a sweet scent.

It needs higher humidity than most hoyas and is more sensitive to dry conditions; the soft leaves desiccate in low humidity. Bright indirect light and consistent watering keep it healthy. A striking and unusual choice for a humid room or a spot near a humidifier.

Hoya lacunosa

Hoya lacunosa is a small-leafed, fast-growing trailing or climbing hoya with oval, textured leaves and clusters of tiny white flowers with an intense cinnamon or honey fragrance. It blooms very readily with bright light and produces multiple flower clusters in succession throughout the growing season.

One of the most fragrant hoyas, sometimes called the cinnamon hoya. Easy to grow with care similar to carnosa. Well suited to a hanging basket in a bright spot.

Hoya wayetii and Hoya kentiana

These two are closely related and often confused or mislabeled. Both have narrow, elongated leaves with reddish or purplish margins when given bright light. Wayetii leaves are slightly thicker and wider; kentiana leaves are narrower. Both produce small clusters of star-shaped flowers and are relatively easy to grow with carnosa-level care.

Getting hoyas to bloom

All hoyas share the same general conditions for blooming: bright indirect light (a few hours of gentle direct light, such as from an east window, helps), a cool and slightly dry rest period in winter, and being kept slightly rootbound. Frequent repotting interrupts the bloom cycle.

The peduncle rule is critical: the small woody spur from which hoya flowers emerge will produce flowers again in future seasons from the same point. If you cut it off after flowers drop, you eliminate that blooming site permanently. Leave all old peduncles intact even when they look bare and dry.

Frequently asked questions

What is the easiest hoya to grow?

Hoya carnosa is the easiest hoya for beginners. It tolerates low humidity, inconsistent watering, and a range of light conditions, and it blooms reliably once mature. Hoya pubicalyx is a close second: fast-growing, forgiving, and one of the most prolific bloomers in the genus. Both are good starting points before moving on to more demanding varieties like bella or linearis.

Why is my hoya not blooming?

The most common reasons hoyas fail to bloom: insufficient light (most hoyas need bright indirect light for several hours daily to bloom); being repotted too recently (hoyas bloom more reliably when slightly rootbound, and repotting disrupts the cycle); removing the spent flower peduncles (the small spurs that flowers grow from rebloom in future seasons; never cut them off); and the plant being too young or not mature enough. Most hoyas do not bloom until they are at least 1 to 2 years old in your care.

What is a Hindu rope hoya?

Hindu rope hoya is Hoya compacta, a variety of H. carnosa with leaves that are tightly curled or folded inward, creating a rope-like appearance along the cascading stems. The flowers are identical to standard H. carnosa: clusters of waxy, star-shaped flowers with a sweet fragrance. Growth is very slow compared to standard carnosa. It needs bright indirect light and is more sensitive to overwatering than flat-leafed varieties because water trapped in the curled leaves can cause rot.

Are hoyas safe for cats and dogs?

Hoyas are generally considered non-toxic to cats and dogs according to the ASPCA. They are one of the better trailing plants for pet households. That said, any plant material consumed in large quantities can cause stomach upset, so it is still sensible to keep plants out of reach of pets that actively chew on foliage.