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Ask Garden Guy Horticulturist—Get Real Answers, Free!
Trusted by Houston homeowners since 1991.
Ask Garden Guy is the modern version of the radio call-in show—personalized, local, and available when you actually need help—not once a week. Houston homeowners submit a question and get expert horticultural advice from someone who deeply understands our soil, heat, clay, bugs, freezes, and humidity.
How It Works
Ask a question about your Houston lawn, trees, or landscape
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What kinds of questions can I ask?
We can answer almost any question that you have. Below are some questions and the answers for you to read through.
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Lantana is tough, but it struggles when:
It’s overwatered
The soil stays wet or drains slowly
It’s recently planted and still adjusting
It’s cut back too hard during the wrong season
It’s hit by sudden cold
Make sure the soil drains well, reduce watering, and trim lightly in spring — not fall. Once established, lantana thrives best when treated a bit like a cactus: deep water, then let it fully dry out.
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or Houston’s heat and humidity, these shrubs perform beautifully in part-shade to full shade:
Azalea (Encore® varieties)
Gardenia
Oakleaf Hydrangea
Aucuba
Sweet Viburnum (in dappled shade)
Mahonia
Fatsia Japonica
Camellia
Shade shrubs still need proper spacing and good airflow — Houston humidity is no joke.
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These trees have proven cold-hardy in our area, even through past freeze events:
Live Oak
Pecan
Bald Cypress
Crape Myrtle
Cedar Elm
Southern Magnolia
Chinese Pistache
Mexican Plum
Pine varieties (Loblolly especially)
They’re adapted to Texas climate swings — drought, heat, and those surprise cold snaps.
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It depends — some bugs are destructive (like aphids or scale), and others are actually beneficial pollinators or predators.
If the leaves are:
Sticky
Curling
Turning yellow
Covered in black mold or white fuzz
…then the bug is likely harmful.
If you see:
Ladybugs
Lacewings
Bees
Wasps
Predatory beetles
…those are the good guys.
Upload a photo and we’ll identify it — no guessing needed.
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Tree issues can come from:
Fungal disease
Root rot from poor drainage
Pests
Nutrient deficiency
Stress from drought or freeze damage
Look for signs like:
Dead branches
Cankers or peeling bark
Mushrooms at the base
Sudden leaf drop
Discolored or spotted leaves
Send a photo of the trunk, leaves, and base — we’ll pinpoint the issue and tell you exactly what to do next.
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Houston heat and humidity can be tough, but these perennials handle it beautifully and come back year after year:
Lantana
Salvias (especially ‘Mystic Spires’ and Autumn Sage)
Pride of Barbados
Esperanza (Yellow Bells)
Coneflower
Black-Eyed Susan
Gulf Coast Muhly Grass
Verbena
Daylilies
Pentas
Plant in fall or early spring for the strongest root growth before summer. Add mulch, avoid overwatering, and these plants will reward you with long, colorful blooms with very little fuss.