Texas Sabal Palm Fronds Yellowing |Daphne Richards |Central Texas Gardener

Texas Sabal Palm Fronds Yellowing |Daphne Richards |Central Texas Gardener

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– Drought and heat take a toll on our trees. Vincent Campos has a sabal palm and is concerned
about the yellowing fronds. Vincent notes that they water with drip irrigation
on a regular basis and use a slow release palm tree food every three months. Overall, these trees look really healthy to
me. The tip burn on the fronds indicate that the
tissue in that area is drying out. This is often caused by heat drought stress
and can be exacerbated by fertilizers, which are salts. To mitigate this issue, I’d recommend adjusting
to a deeper irrigation rather than relying solely on drip, and cutting back on the fertilizer
in the summer. Deeper irrigation, less often, allows water
to move deeper into the soil profile than drip may provide, which keeps the plant’s
access to water more uniform. Speaking of water, a viewer asks: Does watering
during the day burn plant leaves? Well that depends on where you’re watering. If irrigating the soil, as you should, then
no, Watering during the day would not burn the leaves. But if you’re spraying the plants with water,
then yes, watering during the day may produce spots on the leaves which burn them when the
water quickly evaporates and leaves behind potentially caustic mineral salts. Houston viewer Amy Cortez recently bought
a home that came with invasive Virginia buttonweed. She wants to plant a garden to attract wildlife
eventually. What can she do? We reached out to Harris County Extension
horticulturist Skip Richter, who agrees that this one’s tough to control, and unfortunately
will require an herbicide to eradicate. Here’s what he recommends. First, minimize watering. Virginia buttonweed loves wet conditions and
over watering adds to its proliferation. Secondly, work to maximize turf grass density
with proper mowing, fertilizing, and watering. And lastly, consider hiring a professional
to assist with applying an herbicide to selectively treat this weed. Because it has underground stems, it creeps
prolifically, so you can’t simply pull it up without leaving some behind to resprout. And even one herbicide treatment won’t do
the trick on this pernicious weed. Multiple applications will be necessary, and
mistakes costly, potentially damaging the turf and other nearby plants. Across Texas, viewers are planting for wildlife. Houston gardener Shelly McDaniel has got a
lot going on, from carpenter bees on her summertime celosia and arantha flowers to all kinds of
butterflies enjoying repeat blooming cone flowers. And she grabbed another great shot of a monarch
on milkweed. Angela Carver’s garden is just as diverse
and beautiful, where perennializing bulb lycoris radiata sent up spidery flowers a few weeks
ago. Her datura purple ballerina attracts pollinating
moths at night, and pride of barbados attracts butterflies like this tiger swallowtail. Agnes Fajkus also attracts butterflies to
her garden, including swallowtail, and caught a tiny hummingbird taking a quick break. In Eastern Travis County, DeAnn Smith Caylor
documented the birth of mockingbirds from eggs to nestlings. Her husband David is an organic gardener with
a degree in agriculture, so they nurture gardens and wildlife. From Houston, Brennon Romney sent pictures
of a giant moth that his young daughter found. They learned that it is a black witch moth,
which is so large that it’s often mistaken for a bat. They measured this one at being four to five
inches wide. We’d love to hear your stories. Head over to centraltexasgardener.org to send
us your questions, pictures, and video.

One thought on “Texas Sabal Palm Fronds Yellowing |Daphne Richards |Central Texas Gardener

  • Reba Wiles Post author

    Are you talking about sabal minor aka dwarf palmetto? Native plants should not need any irrigation or fertilizer once established.

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