These fruit trees are simple to grow on a deck, patio, balcony, or in a sunny spot in a greenhouse, conservatory, or porch ...
Avocado trees typically won't produce fruit until the third year ... do well with a few sprinkles of blood meal fertilizer ...
As a bonus, using the ash sparingly around your fruit trees has the benefit of applying an organic fertilizer that's completely free and a great way of repurposing an otherwise waste product.