From what I know, not many plants behave similarly like hoyas when it comes to the production of new flower buds. Hoya are unique in this aspect because new flower buds are formed on existing old flower stalks, technically called peduncles. Unless one is aware of this interesting flowering habit of hoyas, one may tried cutting bare peduncles after the umbel of flowers have faded away
A peduncle found on my Hoya caudata plant.
From this, one can easily link it to the fact that the more peduncles one can find on the plant, the more profuse will the flowering be when it blooms. This is true, assuming that the peduncles are not aborted soon after purchase. Hence the number of peduncles on a plant is something to look for when one is choosing to buy plants during a visit to the nursery.
Flower buds emerging from an old peduncle.
It is important to site a hoya plant that is producing new flower buds from constant winds. I have noticed plants losing their buds which tend to yellow and then shrivel away by drying winds that blow at them too frequently. Existing peduncles can also be lost in excessively windy conditions. Note that they do not reappear on the same point along a stem from which they have withered. They only appear on new growth.
Mature flower buds that are yet to open that are formed on the same old peduncle.
Peduncles can grow up to several centimeters long depending on the species. After flowers fade away and drop off, each point of attraction via a single flower will leave a scar on the extending end of the peduncle.With time, numerous scars will be formed on a single peduncle with time, which makes me think, in my opinion, looks like a single, hanging cordyceps that is sold as a medicinal material in Chinese medical halls.
