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Mistakes gardeners are making now they'll pay for later this summer

Sacramento Digs Gardening
BY Kathy Morrison PUBLISHED MAY 21, 2020

It's difficult to pull plants you've grown from seed, but for these beans to thrive, they'll have to be thinned soon. (Photos: Kathy Morrison)

Gardeners can't rest because Mother Nature doesn't, either

May makes gardening seem easy. The plants are green and pretty, the flowers are sprouting and budding, the trees wave their fresh green leaves in the breeze. What a lovely month.

A mulch of newspaper and straw keeps the soil around

this tomato plant from drying out too quickly.

But the biggest mistake a gardener can make right now is to think that the garden, once planted, is done, "set," if you will.

Mother Nature works 24 hours a day, and humans don't. The garden is evolving every second. The humans have to be on their toes to keep up, especially in beautiful May.

Here are a few mistakes gardeners make now that they will regret later:

1. Not mulching. The heat's coming and those vegetable plants are going to be cooked (and the soil baked) without a good layer of leaves, straw, wood chips, shredded bark or whatever you've got. (I save newspaper all winter, then use that as the bottom layer, and pile straw on top.)

This garden would benefit from some mulch now, before the weather heats up.

2. Using hay as mulch instead of straw. There's a difference: Hay is green and full of seeds -- which will sprout in your well-watered garden and suck up the nutrients. Straw is yellow to gold and is hollow. It breaks down nicely later. ( Here's a great post from Debbie last year on mulch and other ways to keep tomatoes productive in heat.)

3. Not thinning sprouts. Awww, those little plants are so cute -- must I pull them out? The answer is yes, if you want to see a decent crop or keep your flowers from being too crowded to grow properly. Learn to be ruthless. Check the seed packet for advice on thinning. (A corollary to this is setting transplants too close together. Yes, that squash is going to overrun that pepper plant in a few weeks. Give them both some space.)

The zinnias are up! Now they should be thinned.

4. Not planting for pollinators. Any vegetable garden should include room for pollinator plants. The bees and other insects do the heavy lifting when it comes to creating the crops, especially tomatoes, squash and melons. Flowering herbs, zinnias, sunflowers and native plants such as salvia or buckwheat will attract pollinators, as well as hummingbirds. ( Here's a full post I wrote on enticing pollinators to the garden.)

5. Not checking the garden often enough. As noted, Mother Nature's a 24/7 worker. A gardener who doesn't "make the rounds" to observe the garden at least once a day is going to eventually find some rude surprises, from overgrown zucchini to collapsed alyssum, and everything in between. Master gardeners also tell me that many garden problems that clients bring them could have been caught and corrected much earlier in the plant's life. If only someone had noticed! So being a close observer of one's own garden is the best way to protect the plants, and the time already invested in them.

Note to newsletter subscribers: We're having issues again. With any luck, this one arrives on time, with Debbie's Wednesday post also attached.

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An article about gardening.

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UCCE master gardeners Sacramento insects weather seedlings vegetable garden gardening integrated pest management vegetables mulch pollinators flowers

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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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