To grow a redbud tree from seed, start by collecting the seeds. The seeds of the redbud come in a string-like structure, much like string beans. Once the pod is split open, you’ll be able to find the redbud seeds. Once you’ve collected the seeds, test them by submerging them in hot water. They will float or sink, so discard them if they float.
Redbuds are easy to propagate from seed. First, take an eight-inch-long cutting and separate it into three sections. Place each section of the cutting in a soil mixture of 72 degrees F (20 C). When the roots are visible, you can plant the cutting in potting medium. Once the cuttings reach the desired size, they need about four more weeks in the potting medium to develop taproots. Make sure to plant the cuttings in the ground before winter, as the redbud tree needs to be protected from frost.
If you’re planting a redbud tree from seed, make sure it’s planted in an area where it will receive full sun, and it’s about eight feet away from any buildings. A good distance to plant it from will prevent root disturbance. Ensure that the ground is level and free of deep foundations. If the seedlings you’re bringing from your previous garden are healthy, the trees should be planted in their permanent location.
The redbud is not an ideal candidate for indoor or cool climates, so it’s best to plant it outdoors as soon as the first heart-shaped leaves form. You can transplant the tree to a permanent location when the first heart-shaped leaves appear. It’s an elegant addition to any garden, and they’re easy to care for. The first step is to dig a large hole where you’ll plant the seedling. The redbud’s root ball should be level with the ground.
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If you’re growing a redbud tree from seed, make sure you have the right soil profile. A redbud tree grows best in a more alkaline soil. A pH level of 7.5 is ideal for the plant. Agricultural lime is the best way to raise the pH level. Once the roots are fully established, you can plant the tree in a permanent location. The redbud’s heart-shaped leaves will add elegance to any garden.
Once the roots have been established, redbud trees can grow as much as two feet a year. Because they have a shallow root system, it’s important to space them at least eight feet apart from other structures, like fences. A fenced area should be at least three feet away from any structure that will be impacted by the growth of the redbud. The root ball should be level with the ground.
Redbud seedlings should be planted at the same depth as the nursery pot. The soil should be moist but not dry. Generally, you should water the redbud seedlings once a week with a bucket of water. If you don’t have a water source, you should plant the seeds in a pot with a drip irrigation system. It is best to wait until the pods are fully mature before planting.
Redbud seeds are collected in early autumn after the leaves have fallen off. The seeds are hard and slow to germinate and must be stratified or scarified to ensure they’ll germinate. Unlike peas, redbud seeds need to be stored at 35 to 41 degrees Fahrenheit for five to eight weeks before they’re ready to be planted. Once soaked, the seeds are ready to plant.
When planting redbud trees, be sure to check the USDA zone. This can help you choose the best location for the tree. If the redbud is not native to your region, use a soil test kit to determine its ideal pH. During the winter, the flowering redbuds will die, but they can survive in zone 5 because they evolved differently. After the seeds have been sprouted, keep them in the refrigerator until mid-February.