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You can grow any tree in a container as long as you have enough room for the roots and can provide the water it needs, which sounds like you've been doing thus far - 22 years is a long time. If the tree is healthy, I would leave it in its container, repotting only as needed. If it is flowering, then I see no reason why it shouldn't produce conkers, given it receives adequate pollination. You may also want to give it some phosphorus rich fertilizer or add bone meal to the soil. Should you decide to plant it out, this article will help:
What else can I help you with?
Can a horse ergot grow back?
Yes, much like chestnut on the inner legs, ergots can and will grow back over time.
Do horse chestnut tree grow in Australia?
No, horse chestnut trees are native to Europe and are not found growing naturally in Australia.
What type of tree do conkers grow into?
Conkers come from the horse chestnut tree (Aesculus hippocastanum), which is a deciduous tree known for its large, distinctive leaves and spiky green fruits.
Do chestnut trees grow in the US?
yes chestnut trees grow in the us in california.
What tree do chestnuts grow on in Scotland?
Aesculus hippocastanum the Horse Chestnut.
Where do chestnut tree grow?
The horse chestnut tree [Aesculus hippocastanum] originated on the borders between Greece and Albania. They along with other members of the family are hardy thro'out most Temperate regions.
You just want your horse to grow up on Howrse why wont it?
the horse has to be taken care of for it to age
How long does it take for a horse chestnut tree to grow 25m high?
I came on here to find the answer not type my answer.
Do chestnut trees grow in Illinois?
I have two chestnut trees in southwest Iowa, so one can assume they would also grow in Illinois.
How do you grow a horse chestnut tree?
To grow a horse chestnut tree, plant the seeds in well-draining soil in a sunny location. Water the tree regularly, especially during dry periods, and provide mulch to retain moisture. Prune the tree as needed to maintain its shape and health.
Difference between chestnut and water chestnut?
An Italian Chestnut, is a type of nut you eat. A horse chestnut is the scabby looking circular spot on the insides of both front and hind legs. This spot is believed to be where the horses of ancient times's third toe came from. I would not suggest eating a horse chestnut. :-)
Horse mushroom what time of year do they grow?
December
