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This fruit loves Sacramento summers

Sacramento Digs Gardening
BY Debbie Arrington PUBLISHED AUG 6, 2018

Pomegranate flowers bloom on Debbie Arrington's tree. Conditions have to be right to get fruit, developing at left.
Photo: Debbie Arrington)

Pomegranates need August heat to be at their best

This is pomegranate weather.

My favorite edible ornamental, pomegranates thrive in the heat of August, soaking up the sun and pumping energy into their fruit. This is when those strange leathery globes really start to swell.

Besides its colorful fruit, pomegranates offer loads of bright orange blooms, a favorite of bees and hummingbirds. In fall, its shiny green foliage turns a beautiful shade of gold. Any harvest is a side benefit.

And harvest can be spotty. Pomegranates may not bear every year — or at all. More a large deciduous shrub than a true tree, a pomegranate produces fruit on second-year wood; pruning needs to be thoughtful and isn’t always easy. I know my pomegranate can create a thicket of thorny fast-growing new growth. But if I over-prune or cut out the wrong branches, there will be no pomegranates the next year.

Improper pruning is just one reason a pomegranate doesn’t bear fruit. Those flashy flowers quickly lose their fertility. Pollinators only have two or three days to do their work before the stigmas in those silky blooms become “less receptive.” If weather conditions aren’t right for pollination (such as rainy, windy or smoky), a tree may have many flowers but still no fruit.

Exposed to too much cold over winter, a pomegranate may be reluctant to fruit in summer. Some newer varieties are strictly ornamental and bear almost all male flowers, which are bigger and showier but never form those juicy orbs.

I grow the California standard: the aptly named Wonderful variety. It’s late season, ripe in October or November after six full months on the tree. With a tasty balance or high sugar and high acid, the fruit is large and ruby red with arils to match. Arils are those plump juicy sacs surrounding each seed. (And there may or may not be 613 seeds, part of the rich lore surrounding this fruit. Researchers have counted 1,300 seeds in a single pomegranate.)

Pomegranate history is full of fun facts like that. Native to Iran, pomegranates have been cultivated since biblical times. Its name means “seeded apple” and some scholars believe it may be the Tree of Life. Representing fertility, pomegranates play significant roles in many Greek myths. The French called it “grenade,” inspiring the military weapon of a similar shape centuries later. (Anyone who has thrown a ripe pomegranate can see the similarity.) The Moors renamed an ancient Spanish city Granada in honor of this fruit.

While Spain and Greece embraced the sun-loving pomegranate, the fruit did not have same reception in England or other colder climes. Pomegranates can tolerate frost and temperatures down to 10 degrees, but they need intense summer heat to be at their best.

Spanish missionaries planted the first California pomegranates in 1769 and this fruit has made itself right at home in the Central Valley. With more interest in antioxidant-rich pomegranate’s health benefits, California’s commercial pomegranate crop has grown five-fold in the past decade.

Pomegranates obviously thrive in Sacramento, too. They’re well adapted to our Mediterranean climate and can tolerate drought as well as hot summer sun.

A Utah Sweet pomegranate grows at the Fair Oaks
Horticulture Center. (Photo: Kathy Morrison)

In the home garden, pomegranates double duty in limited space: food while looking good. And isn’t that the definition of an edible ornamental?

For more on pomegranates and cultivation, check out these notes from UC Davis: ://fruitandnuteducation.ucdavis.edu/ fruitnutproduction/Pomegranate/

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Keywords:

fruit orchard gardening pomegranate Sacramento trees fruit trees edible ornamentals

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Garden Checklist for week of April 21

This week there’s plenty to keep gardeners busy. With no rain in the immediate forecast, remember to irrigate any new transplants.

* Weed, weed, weed! Get them before they flower and go to seed.

* April is the last chance to plant citrus trees such as dwarf orange, lemon and kumquat. These trees also look good in landscaping and provide fresh fruit in winter.

* Smell orange blossoms? Feed citrus trees with a low dose of balanced fertilizer (such as 10-10-10) during bloom to help set fruit. Keep an eye out for ants.

* Apply slow-release fertilizer to the lawn.

* Thoroughly clean debris from the bottom of outdoor ponds or fountains.

* Spring brings a flush of rapid growth, and that means your garden is really hungry. Feed shrubs and trees with a slow-release fertilizer. Or mulch with a 1-inch layer of compost.

* Azaleas and camellias looking a little yellow? If leaves are turning yellow between the veins, give them a boost with chelated iron.

* Trim dead flowers but not leaves from spring-flowering bulbs such as daffodils and tulips. Those leaves gather energy to create next year's flowers. Also, give the bulbs a fertilizer boost after bloom.

* Pinch chrysanthemums back to 12 inches for fall flowers. Cut old stems to the ground.

* Mulch around plants to conserve moisture and control weeds.

* From seed, plant beans, beets, cantaloupes, carrots, corn, cucumbers, melons, radishes and squash.

* Plant onion sets.

* In the flower garden, plant seeds for asters, cosmos, celosia, marigolds, salvia, sunflowers and zinnias.

* Transplant petunias, zinnias, geraniums and other summer bloomers.

* Plant perennials and dahlia tubers for summer bloom.

* Mid to late April is about the last chance to plant summer bulbs, such as gladiolus and tuberous begonias.

* Transplant lettuce seedlings. Choose varieties that mature quickly such as loose leaf.

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