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Garden Word of the Day

Guavas

11/13/2018

2 Comments

 
Native to South and Central America and the Caribbean, delicious guava fruits are the epitome of tropical flavor. But guava trees can become invasive. Are you up to the challenge?
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Ripe guavas (Sakurai Midori)

Cousin to clove, allspice, eucalyptus, and evening primrose, guava trees (Psidium guajava) are a low maintenance, drought tolerant, highly productive tropical fruit tree. If you enjoy eating guavas, growing your own is certainly worth some thought.


Guava plant description

Guavas are an evergreen tree or shrub with shallow roots. Under ideal conditions, trees can reach 12 to 20 feet in height. Elsewhere, they remain more shrublike. Guavas grown in containers will remain small. Attractive, one inch flowers are white. Leaves are thick and fragrant. Fruits generally have green or yellow skin and white flesh, but there are cultivars with red skin, and pink or red flesh. Fruits can range in size from 2 to 5 inches in diameter.
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Apple guava flower (Ton Rulkens)

​Types of guava

There are many varieties and cultivars of guava. You may have heard of apple guava, strawberry guava, and pineapple guava. While the first two are actually guava varieties, pineapple guava is a different species altogether. In the world of guavas, plants are sorted by fruit skin and flesh color, skin thickness, and sweetness. To find the best variety for your microclimate, contact your local County Extension Office.
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Strawberry guava (Forest & Kim Starr)

How guava grows

Guavas are extremely tolerant plants. They grow best in sustained temperatures above 50°F, but can tolerate an occasional light frost. Severe frost will kill young guava trees. Guavas can be grown successfully in heavy clay to light sand, and these plants can tolerate soil pHs ranging from 4.5 to 8.2. [Did I mention how tolerant guavas are?} Guava seeds grow very slowly, at first. Then they shoot up. Mature trees can live up 40 years. Guava flowers are pollinated by many different insects, but mostly by honey bees.

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Growing your own guavas

You can buy guava bare root stock, or you can propagate guavas with seeds, cuttings, layering, and grafting, if you know someone who already has a tree. Guavas prefer full sun, but they can be grown in partial shade. Guavas grow in USDA Hardiness Zones 9 through 11, or you can grow them indoors and pollinate flowers by hand.
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14-month old guava seedling (Davidals)

Guavas are extremely drought tolerant, but plants require up to 39 inches of water each year to produce a good crop. Feeding roots only go down 9 inches, so top dressing with aged compost is an excellent way to keep guava trees fed.

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Guava pests and disease

Guava wood is naturally resistant to insects and fungal disease. They are, however, susceptible to attack by weevils, mites, and guava fruit flies, and they are a host to the Caribbean fruit fly. Many moth and butterfly caterpillars will also feed on guava leaves, and the Erwinia psidii bacteria can cause rot diseases.


Guavas contain a lot of pectin, so it is easy to make guava jams, jellies, and marmalades.
2 Comments
Chuck link
11/13/2018 02:46:35 pm

At Zone 3, 7,600 feet above sea level, I can't grow em here, BUT, I can and will look for them in the produce section at market when next I'm in a city. Thanks!

Reply
Kate Russell
11/14/2018 07:18:43 am

Hi, Chuck.
You are correct, a guava tree would not do well where you are - unless you grow it indoors!

Reply



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