Just plant the entire biodegradable pot (with the seedling) in the garden when it is time to plant the seedlings out. If possible, consider planting the tree at the top of a slight slope, as well. Gather twice as many horse chestnut conkers than you think you will need. Trees do best in weather with cold winters and very warm summers. The horse chestnut tree will lose its leaves seasonally. Plant in an out of the way spot and mulch with 1 to 2 inches of compost. Dig a planting hole with a depth equal to the diameter of the seed, or approximately 1.5 to 2 inches. Dig a hole just large enough to accommodate the root ball. Although poisonous, saponins are poorly absorbed by the human body and so most pass through without harm. Cover the seed with 1 inch of soil. Rinse thoroughly in warm water and allow them to air dry. Sow one horse chestnut in each container. Horse Chestnut tree can live for a thousand years so the growth rate will not be too great. Grow a tree from seed at home with our easy to follow instructions. They should be at least 2 to 3 inches high to transplant successfully. This article was written by a professional writer, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information. Bare rooted trees should be planted late autumn–early spring. Push one seed into a pot filled with compost/soil mix until it is just covered. You can plant the seeds directly into prepared garden soil in October. Mature horse chestnut trees grow to a height of around 40m and can live for up to 300 years. Soil should be deep and sandy. You can plant the seeds directly into prepared garden soil in October. Using only the conkers that sink, plant them about 2cm deep individually in pots of soil / compos t, between now and the end of November. Remove the seed from the conker by pulling one half of the spiny shell (conker) off (conkers open when they hit the ground) and popping the seed out. I just don’t remember how I planted them. For best results, choose a location that receives six or more hours of direct sunlight each days during the growing season. Seeds are not ripe until the conkers have fallen. Growing Horse Chestnut Seeds or Conkers Do not allow them to dry out. This allows you to plant seedlings the following spring. It prefers a minimum of four hours of direct, unfiltered sunlight every day. Use biodegradable pots to start the seeds in rather than 1-inch plastic pots. Always plant your fruit tree so that the grafting union is above the level of the soil. Keep the moss moist by misting periodically with water. Place the seed with the flat side down. Spread the mulch so it reaches the drip line (the imaginary line around trees that marks where the tips of the branches reach). Do not pick up conkers that have not split. Use 2 to 3 inches of mulch around the base of the sapling. Like many trees, propagating horse chestnut trees will require time and patience. Push one seed into a pot filled with compost/soil mix until it is just covered. Thank you. Moisten the compost/soil mix with water and fill the 1-inch pots to the top. Be sure to mark the spot so you don't accidentally till over the seeds. In Europe, aesculus species are referred to as horse chestnuts. The fruit of the tree is a moderately poisonous seed (the horse chestnut), and can be found inside a prickly husk. Animals … Growing a horse chestnut tree from seed begins with chilling the conker. Jennifer Lesser is a New Jersey-based freelance writer specializing in health and wellness for both humans and their four-legged friends. Aesculus is comprised of approximately 20 species of trees and woody shrubs, with six native to North America and the rest native to Europe and Asia. Substitute coir (coconut fiber) for the peat or sphagnum moss for an environmentally friendly way to store the seeds. If you have collected your seeds in the autumn, store them in a perforated plastic zipping bag in moistened peat moss or vermiculite at 35 degrees F. Step 2 - Transplant the Seedlings. Horse chestnuts prefer slightly moist soil to excessively dry soil so they are the perfect trees for clay and clay loam soils. These Perennial Flowers Give Many Weeks of Bloom, How to Grow and Care for Velvet Banana Trees, 17 Types of Flowering Trees for Home Landscaping. You can collect fallen conkers and plant the nuts to grow horse chestnut trees of your very own! This tree will thrive in both full sun and partial shade. Bring the pots indoors if nighttime temperatures drop below freezing. 5 years ago. Water well and … If seeds remain outside during cold winter days, this is sufficient chilling, but they’re unlikely to still be there in spring. The non-native tree can be a bit messy and offers little in the way of vibrant fall foliage, but it makes an excellent choice to line streets or provide some shade from the sun. These trees do not tolerate excessively dry conditions, and will grow best if the soil is kept moist. Do not seal the bag; rather, allow it to remain slightly open or poke several holes in the plastic to allow some air flow. Remember to pull the mulch 1 to 2 inches away from the base of the tree. Horse chestnuts are aesculus hippocastanum and are not as hardy as buckeyes. In the United States, they are referred to as buckeyes. Place the pots outdoors in a spot that receives morning sun and afternoon shade. some tree seeds - conkers from a horse chestnut tree, acorns from an oak tree, and helicopters from a sycamore tree are all good ones to look for ; Top. Transplant the seedlings outside in a prepared hole, but only after removing the seed hull attached to the plant. Do not allow the soil around the seedlings to become soggy as the seedlings will succumb to root rot if left in standing water. Spread the mulch so it extends 3 to 4 inches from the trunk. Make your own seed starting mix for horse chestnuts by mixing compost and potting soil together to make a 50/50 compost/soil mix. Popular for both its valuable wood and edible seeds, the sweet chestnut - Castanea sativa is a large growing deciduous tree native to southern Europe, north Africa and Asia Minor. 2 1. The way to get the most trees established is to plant the seed in a garden-type setting, a seed bed, which is protected from mice, squirrels, chipmunks, woodpeckers, blue jays, etc. In this article I will discuss the second option, as it all… How deep should I plant it, which end goes "up," etc.? Best of luck. How to grow your Horse Chestnut trees Place your conkers in a container of water, discard the ones that float these have dried out. As a child I sat on my roof under a Horse Chestnut tree. The bark is smooth and pinky-grey when young, which darkens and develops scaly plates with age. Twigs are hairless and stout; buds are oval, dark red, shiny and sticky. Each conker contains one seed so you will need to gather 8 conkers if you want 4 trees, because not all the seeds that you start will germinate. The seeds inside probably won't germinate. Seeds will germinate in 4 to 10 days. Low branches should be removed, as well as crowded or crossing branches. Give your seedlings 1 to 2 inches of water a week. Set the planted chestnut seed in a sunny window and keep indoors until the outside temperature has reached about 60 degrees and all danger of frost is gone. Chestnut trees need abundant sunlight (six or more hours of direct summer sun) and fertile, well-drained and slightly acidic soil. They are valued for their beauty, the nectar that their flowers provide for bees, and their conkers. 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