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Want bold shades in your plant? Learn the best Ways to Promote Purple Color in Purple Heart Plant for rich healthy hues.
If your Purple Heart plant has started looking more green than purple, take a close look at where you are growing it. The color of the leaves can change when the plant does not get enough light. New growth may also look different from older leaves.
You do not need any special trick to bring out the purple color. In most cases, a better growing spot and a little regular pruning can make a noticeable difference. Here is what you can try.
Best Ways to Promote Purple Color in Purple Heart Plant
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1. Give Your Purple Heart Plenty of Light
Light has a big effect on the color of your Purple Heart plant. You will usually get deeper purple leaves when the plant receives plenty of bright light.
If you grow it indoors, place it close to a bright window. A few hours of direct morning sun can work well. If the plant is sitting several feet away from a window or in a darker corner, the leaves may become greener.
If you grow it outdoors, give it a bright spot where it can get plenty of sunlight. In case the plant has been kept in shade, move it into stronger light gradually. A sudden change can stress the leaves.
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2. Provide New Growth Better Exposure
Look closely at the newest leaves on your plant. Are they getting enough light, or are they tucked under older leaves?
Long stems can sometimes grow in a way that leaves the new foliage shaded. You can gently spread the stems out so more of the plant receives light. Turning an indoor pot every week or two can also help if one side gets more sunlight than the other.
You should start seeing a difference in new growth once the plant gets better light. Older green leaves may not change dramatically, so pay more attention to the leaves that develop after you make the change.
3. Prune Long and Thin Stems
Your Purple Heart can become leggy when it does not get enough light. The stems stretch toward the light, leaving you with a plant that looks thin and has more space between the leaves.
Trim these long stems back with clean scissors. You do not have to cut everything at once. Start with the longest or weakest-looking stems.
Pruning also encourages the plant to produce new shoots from the remaining stems. If those new shoots grow in a bright spot, they can develop better color and give your plant a fuller appearance.
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4. Avoid Overfeeding Your Plant
You may think more fertilizer will give you better color, but that is not always the case. Too much fertilizer, especially one high in nitrogen, can push your Purple Heart into producing lots of leafy green growth.
You can fertilize during active growth, but follow the recommended amount on the label. There is no need to feed it heavily. If your plant is already growing well, focus first on its light and growing conditions instead of adding more fertilizer.
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5. Keep the Roots Healthy
Your Purple Heart needs healthy roots to produce strong new growth. Constantly wet soil can cause problems, especially when the pot does not drain well.
Use a pot with drainage holes and a loose potting mix that allows excess water to escape. Water when the top part of the soil has dried rather than keeping it wet all the time.
You may not notice a direct change in leaf color from better drainage, but healthy roots help the plant keep producing good new growth. That matters when you are trying to improve its overall appearance.
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6. Give It More Sun Gradually
If your plant has been growing indoors or in deep shade, do not suddenly place it in strong afternoon sun. The leaves need time to adjust.
Start by giving it brighter light for a few hours each day. Increase the exposure gradually as the plant gets used to the new spot. This is especially important during hot weather. If you notice scorched or bleached patches on the leaves, move the plant to a spot with less intense sun.
7. Watch How the Color Changes
Do not expect the whole plant to turn dark purple within a few days. Give it some time after changing its growing conditions.
New leaves are the best ones to watch. If they start coming in with a deeper purple color, your plant is responding well to the brighter conditions.
You may also notice seasonal changes. Outdoor plants often receive more intense light during the brighter part of the growing season, while indoor plants can receive much less light during winter.
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8. Do Not Be Afraid to Cut It Back
Purple Heart plants can grow quickly, and trimming them regularly can keep them from becoming messy and sparse.
When you prune, save healthy stem cuttings if you want more plants. You can root the cuttings and plant them back into the same container. This is an easy way to make an older plant look fuller.
Keep the new growth where it can receive good light. Otherwise, the stems may stretch again.
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9. Let Your Purple Heart Get Time to Respond
The easiest way to bring out more purple is to give your plant enough light and keep it growing in good conditions. You do not need to keep changing everything at once.
Start with the light. If the plant is growing in a dim spot, move it somewhere brighter. Then watch the new growth over the next few weeks. If the new leaves are becoming more purple, you are on the right track. Keep the conditions steady and prune the plant when it starts getting too long or thin.
NOTE: The Purple Heart plant (Tradescantia pallida) gets its deep purple color from natural pigments called anthocyanins.
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