Although we live in a Mediterranean climate, we are lucky enough to have micro-climates mild enough to support tropical and subtropical plants, such as citrus and avocado. Ideal climates should have winter lows above 27F.
Spring is the ideal time of the year to purchase and plant subtropical ever-green trees. With some special care, attention and the right location, you too should be able to enjoy homegrown citrus and avocado fruit!
The University of California Master Gardeners will hold the sixth of its Advice to Grow by Seminars on Saturday, June 19,, in the garden at 2156 Sierra Way, San Luis Obispo, with an educational program on citrus and avocados.
Topics to include:
Selecting the right tree for your climate: Some varieties are more tolerant of our cooler conditions during the foggy summer months. Varieties that require a lot of heat may never ripen.
Selecting the best location in your yard and recognizing micro-climates that occur even in small areas: Plant your subtropical trees in a higher location on your property, as cold night-time air settles in the lowest parts. A location with full sun and warm reflective heat will help fruit ripen.
How to plant the tree and the required spacing: Planting your trees the right way and with enough space will ensure it has good sun exposure and air circulation when it’s mature.
Understanding how much water is going to be needed to sustain your tree over the long term: Remember that subtropical climates receive more rain than our Mediterranean climate!
Weed management under the trees.
How to protect your trees from frost.
Understanding the tree’s fertilizer requirements and symptoms of fertilizer deficiencies.
Insects and pest identification and methods of reducing pest populations using the least toxic methods available.
Pruning and protecting the bark from sun scald.
The UC Master Gardeners offer free on-going educational courses for the public on the third Saturday of each month, starting at 10 a.m. The seminar will be held outside, so comfortable dress and sun protection are advised. Attendees are encouraged to bring a folding chair. Parking is available in the lot adjacent to the garden.