Just as in many things, the availably of certain plants can be seasonal, temporary, or just plain difficult. Of course, everyone knows that you can’t buy bedding annuals in December, nor can you find many Norfolk pine during the summer. This is just how the greenhouse industry works – and consumers seem satisfied with this model.
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A variegated Hoya Kerii, also known as the heart hoya or Valentine plant, takes in the morning sun on a Raymond windowsill. PHOTO BY KENDRA RAYMOND |
If you are lucky enough to encounter a heart hoya, it will likely be offered as a single heart-shaped leaf cutting planted in a pot. While this is perfectly viable, this is all that you will likely ever see.
A better choice might be the vine form of the plant, rooted as a stem cutting. This means that there is more than one leaf present, the plant is starting to vine, and there are the infamous “nodes.” If you want to have the plant grow and vine, you must have the nodes. Furthermore, the presence of the nodes allows you to take cuttings from your heart hoya to root and create new plants and Voila – Valentine’s gifts for all your family and friends.
Native to southeast Asia, the Hoya Kerrii is a succulent plant, so it thrives on neglect, especially infrequent watering. Let’s look at the culture of this easy-to-grow plant.
Light
The hoya thrives in bright direct sunlight for several hours a day in a south or west facing window. If you don’t have that kind of lighting available, perhaps consider purchasing a grow light.
Soil and Water
Your hoya will be happiest in a custom mixed soil that is light and fluffy. A mixture of potting soil, a bit of sand, and even some wood chips or vermiculite will help lighten up the growing medium. The plant will do best if it is allowed to dry out between waterings. In fact, it is best to wait for the leaves to appear less plump and even wrinkly. High humidity is favorable for your hoya, so placing the plant near a humidifier or spritzing it occasionally can be beneficial.
Propagation
The spruce.com website offers the following steps to grow additional plants:
Hoya Kerrii can be propagated using stem cuttings. You can either propagate Hoya Kerrii in water or in sphagnum moss. Both methods can be successful, but some people have more success with one medium over another.
Here is how you can propagate your Hoya Kerrii using water or sphagnum moss.
Take a stem cutting from a mature hoya kerrii using a pair of sharp pruning shears or scissors. Each cutting should have at least three nodes along the stem. The nodes are where the leaves and roots will grow from.
Remove the bottom one to two leaves from each cutting, so those nodes are left exposed. Ensure that each cutting has at least one leaf left at the top of the stem.
If you are using water, fill a small container with water and place the bottom of the cutting in the water, ensuring that the leaves on the stem remain above the surface. If you are using sphagnum moss, soak the moss in water for 10 minutes and then squeeze out the excess water. Add the moss into a container and gently pack it around the base of the cutting, ensuring the moss covers the nodes, but the leaves remain uncovered.
Place the cutting(s) in a location that receives bright, indirect light.
If you are using water, the water should be refreshed once a week. If you are using sphagnum moss, ensure that the moss remains moist and does not dry out
After a couple of weeks, small roots should begin to form. Wait until the roots are at least 1 to 2 inches long before planting the cuttings.
Pot the rooted cuttings in a well-draining potting mixture and water well. Keep the soil moist for the first couple of weeks to help the new roots acclimate to the soil. Return the potted cuttings to their previous location. They can be moved into a brighter spot to encourage more vigorous growth now that they are established but do so gradually to avoid burning the leaves.
Where can I get one?
Acquiring a Hoya Kerrii may be your greatest challenge. As a horticulturist myself, I am always on the lookout for this precious cargo. Oftentimes, single-leaf cuttings can be found at the local grocery or big box stores. This is probably not the best option, unless they happen to have one with a stem and multiple leaves.
Your best bet can be a local greenhouse that is open during the winter. Just make sure to call ahead to see if they are available. You may be to do some calling around to find one with the leaves and vine.
Another option is online shopping. There are several options available but keep an eye on whether you are buying a leaf or vine, reviews, and shipping costs.
Whichever way you choose to go, keep in mind that a healthy heart hoya vine will be a bit of an investment, with the average price ranging from $20 to $30 dollars. The investment though is well worth it considering the numerous plants you can eventually grow to sell or share with others. <