Garden Notes
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Iron Chlorosis
Iron Chlorosis is the lack of iron in a plant. University of Memphis Director of Landscape Joellen Dimond shows a tree suffering from iron chlorosis. The most obvious sign is in the leaves: green veins with yellowing or chartreuse tissue between the veins. Fertilizing the tree with a fertilizer containing iron will clear up the problem.
Related Videos: Fertilizing Trees How a Tree Works Related Resources: Iron Chlorosis Fertilizing Shade Trees Fertilizing Trees & Shrubs |
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Pine straw or pine needles make a good mulch. UT Extension Agent Chris Cooper says pine straw is an organic mulch that will stay in place and not wash or blow away. Like other mulches it shades the soil, aids in water retention, and reduces splashing. It also has a unique benefit that is discourages slugs and snails because the roughness of the needles cuts their bodies.
Related Videos: Kinds of Mulch What is the best way to get rid of snails? Related Resources: Types and Uses of Mulch in the Landscape Mulching Your Trees and Landscapes |
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Blossom End Rot
Blossom end rot is caused by a lack of calcium in the plant. UT Extension Agent Chris Cooper takes a look at a watermelon that has blossom end rot. This is often caused by too much or not enough water. Also, a soil test can determine if the soil needs more calcium.
Related Videos: How do you cure blossom end rot on tomatoes? Watermelons In Raised Beds Related Resources: Blossom-End Rot of Tomato, Pepper, and Watermelon Blossom End Rot |
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What to Do with Dead Plants
Some plants will always die in the landscape. UT Extension Agent Chris Cooper says you should remove them because they can harbor fungus and insects. He also suggests inspecting the plant and roots to trying to figure out what killed the plant. That might save other plants in your garden.
Related Videos: Cleaning Out Garden Beds Spring Butterfly Garden Clean-Out Related Resources: Tips for garden clean-up to reduce pests, diseases Cleaning Up after Plant Disease |
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Dallisgrass in the Lawn
This week in the garden UT Extension Agent Booker T. Leigh identifies dallisgrass in the lawn and tells how to get rid of it both manually and chemically. If it is controlled quickly you can prevent its spread.
Related Videos: Herbicide Basics How To Wipe On Herbicide Related Resources: Dallisgrass Dallisgrass |
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Blight
Horticulture expert Dr. Lelia Kelly defines the gardening term blight. The word blight can either refer to a particular disease, or the actual injury on the plant. Blights often appear as spots, lesions, or even death of the plant. Most blights are caused by a fungus. Using a fungicide can prevent infection to new tissue, it can not cure the existing damage.
Related Videos: Tomato Early Blight Stopping Tomato Blight Related Resources: Fire Blight Early blight of tomato |
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Dandelions
This week in the garden UT Extension Agent Chris talks about the weed everyone knows: dandelions. Dandelions are a broadleaf perennial weed that spread by seed. The same plant can live several years because of it’s large taproot.
Related Videos: Controlling Weeds The Worst Weeds Lawn Weed Killer Application Related Resources: Dandelions Common Dandelion |
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Spring Dead Spot
Spring dead spot is a fungal disease that affects warm season grass in the spring. UT Extension Agent Chris Cooper says it usually appears after a wet fall and keeps patches of grass from greening up in the spring. It can be treated with a lawn fungicide. If you leave it untreated it will not go away but get worse.
Related Videos: Mixing and Applying Fungicide Fungicides Related Resources: Brown Patch & Large Patch Diseases of Lawns Spring Dead Spot in Turf |
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When to Harvest Radishes
Master Gardener Tom Mashour shows how to tell if a radish is ready to pull or if it's past its prime.
Related Videos: When to Pick Bell Peppers When to Pick Okra Related Resources: Radishes in the Garden Carrot, Beet, Radish & Parsnip Vegetable Harvest and Storage |
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Hairy Bittercress
This week in the garden UT Extension Agent Chris Cooper shows off his favorite weed, hairy bittercress. It has exploding seed pods that can throw a seed ten feet when it is brushed.
Related Videos: Notes-Weeds: Hairy Bittercress Controlling Weeds Related Resources: Weed of the Month: Hairy Bittercress Hairy Bittercress (Cardamine hirsuta) |
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Amendment
Horticulture expert Dr. Lelia Kelly defines the gardening term amendment. An amendment is something added to the soil to improve it. This can include fertilizer, lime, or organic matter.
Related Videos: Fertilizer Basics Composting Related Resources: Choosing a Soil Amendment Soil Building & Plant Nutrition |
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Frozen Strawberry Blooms
Retired UT Extension Agent Mike Dennison takes a look at some freeze damage on strawberry blooms. The temperature dropped to about 29 degrees a week ago and some of the strawberry blooms were frozen and died. If this happens the plant will just produce more blooms.
Related Video: Moving and Renovating Strawberries Planting Strawberries Related Resources: Frost/Freeze Protection in Strawberries Critical Temperatures for Strawberry Buds and Blossoms and Freeze Protection |
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Heirloom
Horticulture expert Dr. Lelia Kelly defines the gardening term Heirloom. An heirloom is a plant variety available unchanged for many years. There are many different ideas about exactly how long that needs to be. These are plants that will breed true from generation to generation. They tend to be good reliable varieties.
Related Videos: Heirlooms What does heirloom mean? Can hybrid tomatoes be saved and come true next year? Related Resource: Heirloom Plant Varieties Provide More Than a Good Harvest or Beautiful Blooms Heirloom Vegetables March 27, 2021 |
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Feeder Roots
Horticulture expert Dr. Lelia Kelly defines the gardening term feeder roots. Plants have two kinds of roots: anchor roots that hold the plant to the ground, and feeder roots that get nutrients from the soil. Feeder roots usually grow in the top few inches of the soil. Feeder roots are very small and spread in the soil like a spider web around the plant. The soil under a tree is full of feeder roots for that tree. If you dig under the tree you are affecting the feeder roots.
Related Videos: How Trees Work Encouraging Tree Feeder Root Growth Related Resource: Healthy Roots and Healthy Trees Understanding Plant Roots March 20, 2021 |
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Hybrid
Horticulture expert Dr. Lelia Kelly defines the gardening term hybrid. A hybrid is a plant that has been cross-pollinated or bred to emphasize certain traits. Usually a hybrid is created by people not nature. It is a cross between two different parents to try to get the best characteristics of each. Hybrids will often not breed true; their offspring will not be the same as the mother plant. To get another plant you must go back and cross the two parents again.
Related Videos: Can hybrid tomatoes be saved and come true next year? H - Garden Glossary Related Resource: Let's Talk About Hybrids and Standards March 13, 2021 |
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Chlorosis
Horticulture expert Dr. Lelia Kelly defines the gardening term chlorosis. Chlorosis is a yellowing or lack of chlorophyll in the leaves of a plant. Chlorosis can be caused by the incorrect amount of water, a nutrient deficiency, herbicide damage, air pollution, or not enough light. A related term is necrosis which is dead tissue.
Related Videos: TWIG - Nutrient Deficient (Yellowing Leaves) Bean Fix If my vegetables have herbicide damage are they still safe to eat? TWIG Nutrient-Deficient Pepper Fix Related Resources: Chlorosis Chlorosis March 6, 2021 |
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Translocation
Horticulture expert Dr. Lelia Kelly defines the gardening term "Translocation". Translocation is just movement throughout the plant. Things are translocated usually through the vascular system of the plant like our arteries and veins.
Related Videos: H - Garden Glossary L - Garden Glossary Related Resources: Plant Growth and Development February 27, 2021 |
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Chill HoursHorticulture expert Dr. Lelia Kelly defines the gardening term chill hours. This refers to the number of hours below a certain temperature that is required before a plant will flower. Chill hours are typically used to describe fruit trees. You should pick your fruit variety based on the number of chill hours where you live. If the plant requires fewer chill hours than your location gets, it will bloom in a warm spell in the middle of winter and the blooms will be killed by frost.
Related Videos: Planting Fruit Trees Fruit and Nut Pollination Fruit Tree Pruning Related Resources: Tree Fruit: What are chill hours? Peach Chill Hours Make or Break Growing Season February 20, 2021 |
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Wet Feet
Horticulture expert Dr. Lelia Kelly defines the gardening term wet feet. A plant is said to have wet feet when it is growing in soil which is continually wet. Most plants do not do well with wet feet. The exception to this is bog plants or aquatic plants that are accustomed to growing in an area with lots of water.
Related Videos: Planting Shrubs in Wet Heavy Soils What can I do to save my new dogwood from soggy soil? Related Resources: Identification of and Corrective Action for Poorly Drained Soils in the Landscape Plants for Damp or Wet Areas February 13, 2021 |
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Green Manure
Horticulture expert Dr. Lelia Kelly defines the gardening term green manure. The term green manure does not refer to animal poop. Green manure is a crop (usually a legume) that is grown specifically to turn back into the soil for its nutrient properties. Some common green manures include clover, vetch, beans, and alfalfa.
Related Videos: Winter Cover Crops Can I use manure in my garden? Related Resources: Cover crops and green manures in home gardens Cover Crops for Home Gardens February 6, 2021 |
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Perennial-Annual-Biennial
Horticulture expert Dr. Lelia Kelly defines the gardening terms "Perennial," "Annual," "Biennial". A perennial is a plant that comes back form the root or the base every year. Like a tree it will live forever unless you kill it. A biennial completes its life cycle in two years like parsley. An annual is programmed to grow in one season, set seed and then die.
Related Videos: Annuals and Perennials for the Garden Pests and Diseases of Annual Flowers Easy Way to Root Cuttings from Annuals Related Resources: Annual, Perennial, Biennial? Plant Life Cycles January 30, 2021 |
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Scarification
Horticulture expert Dr. Lelia Kelly defines the gardening term scarification. Scarification is the process of weakening, opening, or abrading a hard seed coat to allow seed germination. Some seeds will not germinate until the seed coat degrades. The usual method of scarification for the home gardener is mechanical: scraping the seed with a file or knife. Commercially, scarification is also done using acids.
Related Videos: TWIG–Seed Germination Test Starting Fall Vegetables From Seed Problems for Garden Seedlings Related Resources: Overcoming Seed Dormancy: Trees and Shrubs Scarification and Vernalization January 23, 2021 |
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Wheel Bug – Beneficial Bugs
Garden expert Tonya Ashworth talks about wheel bugs. The wheel bug is a type of assassin bug. They are called a wheel bug because they have a large cog looking structure on their back. They live mostly in trees and are about an inch long. They eat many kinds of insects. Wheel bugs can bite you if you try to handle them.
Related Videos: Beneficial Garden Bugs Notes - Beneficial Bugs, Soldier Bug Related Resources: The Wheel Bug Wheel Bug January 16, 2021 |
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Transplant Shock
This week in the garden UT Extension Agent Joellen Dimond looks at a shrub planted recently that looks wilted. It has transplant shock. Once the roots get a chance to grow into the new soil and start absorbing water and nutrients it should perk up and do well.
Related Videos: Seeds or Transplants Moving Volunteer Flowers Related Resources: Transplant Shock: Disease or Cultural Problem Transplant Shock... Making the Case for Smaller Trees Transplanting Established Trees or Shrubs January 9, 2021 |
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Looking at the Compost Pile
This week in the garden Compost Fairy Mike Larrivee examines the Family Plot compost pile and makes suggestions of how to
improve it. Related Videos: TWIG Turning a Compost Pile Composting Related Resources: Composting for the Homeowner Home Composting: A Guide for Home Gardeners January 2, 2021 |