January Garden Guide

gillnurseryMonthly Garden Guide16 Comments

Lawn Care

Weed Control

Spot treat existing weeds growing now with natural horticultural vinegar or Ortho Groundclear. Both will burn any foliage so take care to not spray your plants or lawn.

To prevent weeds, apply Bonide Weed & Crabgrass Preventer or Weed Beater Complete to help control existing weeds and prevent new ones.

Bare Spots & Brown Lawns

You can overseed your lawn now with winter rye grass seed (or fill bare spots with this seed) at the rate of 1 lb. per 100 sq.ft. We have it in 10 to 50 lb. bags.

Do not think about fertilizing until your lawn begins actively growing. Generally this is around early March.

Note:  You cannot apply both winter rye and pre-emergent weed control in the same lawn. The seed will not sprout.

Read: Why Won't My Weed Killer Work?, Our Secret Ingredient for a Happy Lawn

What to Plant

All containerized, bare rooted, and ball in burlap hardy trees, shrubs, vines, fruit trees (not citrus) and roses.

Use Nature's Blend to prepare the garden soil and frost blankets to protect tender veggies from the cold nights.

Vegetable Seeds

Beets, broccoli, cabbage, carrots, Swiss chard, collards, lettuce, mustard, radish, spinach and turnips.

Start pepper and tomato seeds indoors to transplant into garden later.

Vegetable Transplants

Broccoli, cabbage, cauliflower, onion sets, seed potatoes, and spinach.

Tomato transplants can be nurtured in pots now and set in the garden in February.

Flower Seeds

Petunias, alyssum, carnations, larkspur, nasturtium, poppy, dusty miller, stock, calendulas and bluebonnets.









Flower Transplant

Pansies, petunias, alyssum, dianthus, snapdragons, and violets, flowering cabbage & kale.

Read: Flowering Cabbage & Kale - Another Winter Treasure









Indoor Plants

Give your indoor plants a checkup. Look over the foliage, remove any old or dead leaves to freshen their look and keep them healthy.

Be sure to set your plants in the proper light indoors but watch that the heater and/or AC vents do not blow directly on them. Windows provide good natural light - open blinds and curtains during the day.

Read: Indoor Gardening: EZ as a ZZ!

Water when needed, but plants will not drink as much during Winter months. Remember you can add more water, but hard to take out!

Fertilize plants indoors organically with ½ strength Hasta Gro.

If your plants look unhappy, they might need re-potting. Be sure to use a good all-purpose potting mix. Back to Nature’s Premium Potting Mix is one of the best!

Read: Plants, the Perfect Rx for Clean Air


Established Citrus Trees

Fertilize organically with Medina Growin Green, Citrus Tone, or Hasta Gro; or with conventional fertilizer ammonium sulfate 21-0-0.

Cool Weather Vegetables

Fertilize organically with Medina Growin Green, Hasta Gro, or Plant Tone; or with conventional fertilizer ammonium sulfate.

Cool Weather Annuals

Fertilize organically with Medina Growin Green, Maestro Rose Glo, or Plant Tone; or a water-soluble fertilizer like Hasta Gro.

Do not fertilize tropicals. They need to rest.

Watch Out For

Scale Insects

Watch for scale insects on hardy trees and shrubs. Spray with Neem Oil or Dormant Oil spray

Read: Organic Gardening 101 - What's Buggin Ya?

Lawn Fungus

This can be a major problem after long periods of wet, cool weather. There are 2 major lawn fungus – Take All Patch and Brown Patch.

  • Treat Take All Patch organically with Natures’ Blend Organic Compost or peat moss; or use conventional Fertilome Systemic Lawn Fungicide or Scotts Disease Ex.

  • Treat Brown Patch organically with horticultural corn meal or Nature’s Blend compost, or conventionally with Bayer Lawn Fungus Granules or F-Stop Fungus Granules.

Read: Protect Your Lawn: Recent Take All Root Rot Sightings (TARR)

Watch: How to Collect a Grass Sample


Fruit Trees

Prune peaches, apples, plum, pear lightly to shape. Do not prune citrus.

Hardy Dormant Trees

Prune oak, mesquite, cedar elm, crape myrtle & soapberry. Do not top trees!


Perennials that have finished their bloom.


Only as needed – but dry cold fronts, high winds and low humidity can dry plants quickly.

Established lawns only need water every couple of weeks, provided we don’t get rain.

Be sure to check your sprinkler system and adjust accordingly.

When or if temperatures dip below freezing:

Move tropical potted plants inside or group them together in a protected area so they may be easily covered.

Mulch and water newly planted trees and shrubs well; water tropicals and potted plants.

Cover tropicals and tender plants with frost blankets (which we sell), sheets, household blankets or plastic (Note plastic can burn the outer foliage it is touching).

Bring fabric all the way to the ground allowing heat from the soil to be trapped around the plant.

Uncover all plants as temperatures rise to prevent the foliage from scorching.

Read: Some tips on preparing for a freeze in last week's "Freeze Alert"

16 Comments on “January Garden Guide”

    1. Hey Chet, sorry but comments were disabled last year, and just showed up now. Keep your poinsettia lightly moist, never saturated and standing in water. Brighter light will hold leaves and color better than a dark place away from a window.

  1. Do you sell freeze covers, and how much are they? What are the temperatures they can protect the plants to?

    1. Hey Chet, sorry but comments were disabled last year, and just showed up now. Keep your poinsettia lightly moist, never saturated and standing in water. Brighter light will hold leaves and color better than a dark place away from a window.

    2. And Ruth, we do sell frost blankets, 10×12 is $16.99. They provide approximately 5 degrees of protection, but that is partly dependent on wind speed.

  2. Do you guys have any plants that will grow indoor in an office with no windows? I need some plants and would like to know which ones I could buy.

    1. All plants require light, but artificial light is adequate for some varieties. Some plants to consider would be pothos ivy, sansevieria, and dracena marginata. Come by and ask about low light indoor plants.

    1. Yes you should, I like to do that pruning last week of January. As temperatures warm more, vigorous growth will start, and we prefer to do our major pruning before that growth spurt.

  3. It didn’t happen in previous years but I’m growing a bumper crop of thistle this spring. How to control?

    1. You can pull them after a rain or thorough watering, or just keep mowed short so they cannot flower, or treat with a broadleaf weedkiller. If you want to spray them, come in and we can fix you up. You can limit this problem next year by applying a pre-emergent this fall, in October. We can help you with that too.

    1. Yes its fine to plant oleanders now. We do not currently have many in stock, but if you have interest in a particular variety and quantity, ask us if we can get them.

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