Catalpa trees are easy to propagate from seeds and cuttings, according to the JC Raulston Arboretum. Gather the seeds and plant in a moist, full sun location in the garden or in 1-gallon containers. Press the seeds into the soil, spacing them at least 6 inches apart.
It is an invasive, weedy tree which escapes cultivation easily. The flowers, long seedpods and seeds fall down from spring through winter, and create a mess on the ground anywhere near the tree. Catalpas can readily be grown from seed.
Catalpa trees can be propagated from cuttings taken during the summer. Semi-hard and softwood cuttings can be taken from non-flowering shoots. Studies have shown that the best cuttings come from first year cuttings. Expected rooting percentages go from almost 100% for first year, to 77% in third year [ Gardner ].
Catalpa firewood is usually not a favorite, but as with all wood, it burns fine when it is dry. ... Catalpa wood is good for starting fires and will put out heat just fine, but it will burn up quickly and you will have to keep putting wood on the fire if you want an extended burn.. . . . .364011235544!]0000000000000009783314145391!]