Hoya Mathilde 4”

Hoya ‘Mathilde’

This is a documented hybrid between Hoya carnosa and Hoya serpens, originating in Belgium in 1994. Its small, rounded leaves combine the petite foliage of the serpens parent with some of the thicker, more succulent character of carnosa. Silver flecking is naturally part of the foliage and can vary considerably from leaf to leaf. Mature plants can produce clusters of fuzzy, pale star-shaped flowers with darker pink to red centers. The original cultivar history and parentage are unusually well documented for a Hoya.

This is a vining plant with relatively fine stems and a compact growth habit. It can be allowed to trail from a hanging pot or trained around a small trellis. As the vines lengthen, new pairs of leaves develop along the stems and the plant can become quite dense. Mature vines can also develop persistent flower spurs called peduncles. Leave these attached after flowering because the same peduncle can bloom again.

For natural light, an east-facing window within about 1–2 feet or a west-facing window within about 1–3 feet is a good starting point. Aim for approximately 1,000–2,000 foot-candles at the leaves. Foot-candles simply tell you how much light is actually reaching your plant. Window direction and distance give you a starting point, but window size, trees, overhangs, screens and seasonal changes can alter the amount of light reaching the foliage.

Under grow lights, use a 5000–6500K full-spectrum light positioned approximately 8–12 inches above the canopy as a starting point, aiming for the same 1,000–2,000 foot-candles at the leaves. Kelvin describes the color of the light, while foot-candles tell you how much light is actually reaching the plant. If the vines begin producing longer spaces between leaves or weaker, stretched growth, check the amount of light reaching the canopy. Adjust the fixture as the plant grows so the newest growth remains within the useful light zone.

The small, fleshy leaves can store some water, so allow a substantial portion of the root zone to dry before watering again rather than keeping the mix continually wet. Water when your plant needs watered. An airy, fast-draining potting mix gives the roots access to both moisture and oxygen. Long vines do not necessarily mean the plant needs a larger pot, so let the size of the root system guide repotting.

Watch the foliage and new growth along with the potting mix. Hydrated leaves should feel substantial and firm, while a plant that has used a significant amount of its available water may begin to feel less rigid. Increasingly long internodes or vines repeatedly reaching toward the light can point you back toward the lighting environment. A few changes on an individual leaf are clues to investigate rather than a diagnosis by themselves.

A plant moving in the right direction will produce steady new vines, closely spaced pairs of firm leaves and increasingly full growth. With maturity and enough usable light, peduncles and flowering can follow. The goal is not for every leaf to look identical. The naturally variable silver markings, compact foliage and dense trailing or climbing growth are part of what makes this hybrid so distinctive.