Horticulture: Your Yard & Garden
Discover
Knowledge Base & Help Center
Do you have questions about your garden? Want to learn more about horticulture? Need advice on a specific plant topic?
Find information about:
Are Your Trees Ready for the Next Storm
Possible Causes of Sudden Wilt & Death in Tomatoes
White Grubs
5 Tips to Make Your Landscape More Bird-Friendly
Bush Cherries - A Game Changer for the Home Orchard
Greenbrier - A Thorny Invader
Plants for Pollinators
and much more!
Search Local & National Extension Resources
January FAQs: Find Answers to Frequently Asked Questions
Which house plants grow well with low light?
Some great choices for low light locations in the home include the following.
Alumunim plant, Pilea cadierei
Arrowhead vine, Syngonium podophyllum
Bamboo palm, Chamaedorea seifrizii
Parlor palm, Chamaedora elegans
Cast iron plant, Aspidistra elatior
Chinese evergreen, Aglaonema spp.
Dumbcane, Dieffenbachia spp.
English ivy, Hedera helix
Fishtail palm, Caryota mitis
Grape ivy, Cissus alata
Lady palm, Rhapis excelsa
Peace lily, Spathiphyllum spp.
Peperomia, Peperomia spp.
Philodendron, Philodendron spp.
Pothos or devil’s ivy, Epipremnum aureum
Snake plant, Sansevieria trifasciata
Spider plant, Chlorophytum comosum
Swedish ivy, Plectranthus australis
Inch plant (formerly wandering Jew), Tradescantia zebrina
ZZ plant, Zamioculcas zamiifolia
For more information on providing supplemental lights for your houseplants, visit Let There Be Light...For Your Houseplants.
When should I plant seeds to start vegetable garden transplants indoors?
Tomatoes normally take about 6-weeks to grow into a good-sized transplant. Peppers require about the same amount of time, but slower growing cultivars may require 8-weeks. The correct indoor sowing dates for several popular flowers and vegetables are:
- early March - cabbage, broccoli, and cauliflower;
- mid-March - pepper, eggplant, petunia, and salvia;
- late March - tomato, marigold, and zinnia;
- late April - muskmelon, watermelon, squash, and cucumber.
If unsure of the sowing date, check the seed packet.
When is the best time to prune fruit trees and grapes?
Late February or early March is the recommended time. For more information, visit Planning Your Garden Pruning.
Some de-icing products harm the lawn, what can be used on icy sidewalks?
Use sand for icy spots on the sidewalk to increase traction. Or use products such as calcium magnesium acetate (CMA), calcium chloride or magnesium chloride products, which are salt-free, and safe for use around pets and landscapes. For more information, visit Winter Protection for Sensitive Plants.
What is a dormant or horticultural oil and how is it used?
Various types of oils have been used for many centuries to control hard-to-kill insects like adelgids, aphids, mealybugs, psyllids, scale and mites. These products provide good control of these insects and pose little risk to humans, plants or beneficial insects when the products are used according to label directions. Oils kill insects in several ways, most importantly by blocking the air holes through which the insects breathe, causing them to suffocate. Oils may also disrupt insect cell membranes, interfere with insects feeding or act as poisons by interfering with insect metabolism. Oils act like a contact insecticide and provide no residual control, so the insects must be present and in a vulnerable stage of development for an oil application to be effective. The development of insect resistance to oils is rare, since the mode of action is mechanical rather than chemical.
Dormant oil gets it's name from the time of year the product is applied - during winter when plants are dormant. Modern horticultural or summer oils are more highly refined and can be safely applied to actively growing plants - IF label directions are following correctly.
Horticultural oils have an emulsifier component added, allowing them to mix with water. Other types of oil, including vegetable oil or automotive oil, do not contain emulsifiers so will not mix with water; consequently, these products should not be used on plants and may cause plant damage.
There is a risk of phytotoxicity from oil products if they are not used correctly. To avoid plant damage, read label directions for use, application timing, and a list of plants products should not be applied to. Always make dormant oil applications plants before bud break to avoid tender plant tissue being damaged. Make applications when temperatures will remain above freezing, ideally above 40 degrees F., for 24 hours and continually agitate the spray solution. Avoid applying dormant oils to stressed plants as these are at higher risk of phytotoxicity.
Dormant Oils, Kansas State University
QUESTIONS
Do you have a lawn, garden or landscape question that is not answered above? Get research-based answers from our experts. Questions will be answered within 2 business days.
Call
MASTER GARDENER HELPLINE
Monday through Friday, 9 a.m. to 12 p.m.
Ask for a Master Gardener, if they are not in the office, please be sure to leave a detailed message.
MESSAGE US
Email us anytime!
Send a detailed email with your question or concern and we will respond as soon as we are able.
Stop In or Leave a Sample
Monday through Friday, 8 a.m. to 4:30 p.m.
Nebraska Extension in Lancaster County, 444 Cherrycreek Rd, Suite A, Lincoln, NE 68528
Stop in for a face-to-face consult or to leave a sample. Call ahead at 402‑441‑7180 to confirm availability.
Digital Diagnostic Network
UPLOAD YOUR IMAGE
Digital images may be submitted to http://digitaldiagnostics.unl.edu for help from Nebraska Extension horticulture experts.
They will review and respond to your question as soon as they are able.