How To Grow Tropicals In Cold Climates

Pot-In-Pot Method. We are located in zone 8a where zone 10 tropical fruits are only a greenhouse thing. We now often use this pot in pot method to shake-up the landscape with palms, bamboo and flowering tropicals. This is the way we do it and it only takes a few hours! Remember, when winter comes, all you have to do is lift your pots out of the ground and store them in a heated garage for the winter, then drop them back in their holes in the spring.

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Getting Started
Fortunately one of our neighbors had a new tractor with an auger bit. We suggest if your potting more than 5 trees to go ahead and rent or hire someone with a bobcat or a tractor, these 7 holes only took 15 minutes to drill by machine, pretty sure a shovel would have taken longer.  To get the pots in a straight line we pulled a tape line and marked 6 foot centers with a small block of wood.

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Align tractor with the row.

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Align auger and drill away.

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Check the hole depth.

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Sleeve pot flush with ground.

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15 minutes later, holes are drilled.

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Ready to drop in the sleeve pots.

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Rake soil until level.

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Irrigation ditch, dug by shovel.

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Run your water line.

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Flip sod back into place.

The Trees
The trees are lined up and ready to plant. For this little area we chose smaller growing tropical fruits trees that produce fruit at an early age. Acerola Cherry, Star Fruit, Papaya, Surinam Cherry and Sundrops Eugenia Victoriana.

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River rocks in the bottom sleeve.

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Keeps pots from sticking together.

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Lift carefully.

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Lower into place.

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At ground level.

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In-ground appearance.

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Irrigation run on top of pots.

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Irrigation ends are plugged.

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Two drip irrigation tubes per pot.

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Eucalyptus is the best choice for mulch.

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Ten bags of mulch were needed.

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Trim damaged limbs.

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The mulch is raked and leveled.

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Tropical fruit all summer.

Mission Complete. Total time about 4 hours work with 2 people a tractor and a slacker with a camera.

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Important
The most important step in growing pot in pot tropicals is to set your irrigation timer properly, as to not over or under water, our timer is set for 5 minutes in the morning and 5 minutes again in the evening. Be sure to use two dippers per pot just in case one clogs. It is best to use rigid pots for the in-ground sleeve. In the winter you may want to cover the holes with a rigid disc. Lucky for us we have over 400 mother plants that can be rotated in our pot-in-pot gardens. We often swap to palms and flowering tropicals if the fruit trees have finished for the year.