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Seasonal Gardening - Spring

Spring is when the San Antonio garden seems to wake up all at once.

Perennials push up fresh growth, wildflowers begin to color the landscape, and trees leaf out with new energy. With warming temperatures, longer days, and the occasional welcome rain, the whole garden feels in motion. It is one of the busiest and most exciting seasons of the year—a time of renewal, rapid growth, and endless temptation to plant something new before summer heat arrives.

Preparation

Prepare vegetable and flower beds by loosening soil and incorporating compost or other organic matter where needed to improve soil structure, drainage, and moisture retention. For lawns, in early spring, aerating followed by a light topdressing of compost is beneficial.

Plants In-Season

Plant warm-season vegetables such as tomatoes, peppers, beans, squash, cucumbers, eggplant, corn, and okra according to local planting dates.

Timing

Mid-April is a good time to plant summer annuals such as angelonia, pentas, salvias, vinca, and purslane or portulaca in sunny beds, and spring is also a smart time to add native and well-adapted perennials suited to San Antonio’s alkaline soils and heat

Weeding

Weed consistently and aggressively. Staying ahead of weeds in spring makes maintenance easier later and helps prevent seed production before summer.

Using Mulch

Apply 2–3 inches of mulch in planting beds to help conserve soil moisture, moderate soil temperature, and suppress weeds, but keep mulch pulled back from stems and tree trunks.

Flower Maintenance

Deadhead flowering plants such as roses, daylilies, and salvias to encourage repeat bloom and improve overall appearance through the season.

Lawn Care

Begin mowing and edging lawns as warm-season turf resumes active growth, and consider leaving grass clippings in place to return organic matter to the lawn.

Placement

Plant or transplant trees and shrubs as needed, but choose the right plant for the right place, dig wide rather than deep planting holes, and monitor carefully for water stress as temperatures rise.

Watering

Water newly planted beds, annuals, trees, and shrubs by hand as they establish, and check irrigation systems in spring before hot weather arrives so water is applied efficiently rather than wasted.

Pruning

Prune spring-flowering shrubs and small ornamental trees after they finish blooming, rather than before, so you do not remove this season’s flowers.

Insects

Monitor for insects and disease as new growth appears, but avoid unnecessary pesticide use when pollinators become active in spring.

Learn More with The Garden

The San Antonio Botanical Garden offers classes, workshops, and seasonal programs that explore these gardening practices in greater depth.

Children’s Vegetable Garden

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Children’s Vegetable Garden
Family Adventure Garden

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Family Adventure Garden
Formal & Display Gardens

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Formal & Display Gardens
Greehey Lawn

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Greehey Lawn
Kumamoto En

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Kumamoto En
Lucile Halsell Conservatory

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Lucile Halsell Conservatory
Mays Family Display Garden

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Mays Family Display Garden
Texas Native Trail

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Texas Native Trail
The Zachry Foundation Culinary Garden

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The Zachry Foundation Culinary Garden
WaterSaver Community

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WaterSaver Community