Indiana Yard and Garden – Purdue Consumer Horticulture A Purdue Extension Service for Home Gardeners

Yard and Garden News

The following news stories are written by Rosie Lerner, Extension Consumer Horticulture Specialist, and are distributed to news media around the state by Agricultural Communication Service, at Purdue University.

Spring Pruning of Roses

Now’s the time to prepare your garden roses for the coming growing season. The three primary purposes of pruning are to remove damaged and unwanted canes, promote optimum blooming and reduce size of the plant, if needed. Roses are best pruned before the new foliage emerges so that you can easily assess winter damage. Winter mulch and foam covers should be removed as soon as new growth becomes apparent. Since a spring freeze is still…Read more about Spring Pruning of Roses[Read More]

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Interveinal Chlorosis on Azaleas and Rhododendron

Chlorotic (a yellowing of the leaves) azaleas and rhododendron are a common sight in the Indiana landscape. The term chlorosis gets its name from the lack of chlorophyll, the pigment responsible for healthy plants’ green color. One major cause of chlorosis is a deficiency of either iron or manganese. Other landscape plants such as pin oak, river birch, holly and sweet gum are also susceptible to chlorosis. Iron deficiency leads to a pattern of yellowing…Read more about Interveinal Chlorosis on Azaleas and Rhododendron[Read More]

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Norfolk Island Pine Needs TLC

Unlike most pines that are familiar to Midwesterners, the Norfolk Island pine is far too tender to plant outdoors in our climate and, in fact, is not a true pine at all. But the good news is that it makes an elegant houseplant when given proper care. It also makes a terrific living Christmas tree; its lush green twigs of soft needles provide a lovely backdrop for festive holiday ornaments. Known botanically as Araucaria heterophylla,…Read more about Norfolk Island Pine Needs TLC[Read More]

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Norfolk Island Pine Needs TLC

Unlike most pines that are familiar to Midwesterners, the Norfolk Island pine is far too tender to plant outdoors in our climate and, in fact, is not a true pine at all. But the good news is that it makes an elegant houseplant when given proper care. It also makes a terrific living Christmas tree; its lush green twigs of soft needles provide a lovely backdrop for festive holiday ornaments. Known botanically as Araucaria heterophylla,…Read more about Norfolk Island Pine Needs TLC[Read More]

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Deicing Salts Helpful For People But Not Landscape Plants

Deicing salts can save your neck this winter, but they can spell disaster for landscape plants. Whether the salt is sprayed on the plants from passing traffic near the road or is shoveled onto plants near the sidewalk, the salt can cause damage. Salts can adversely affect plants in several ways. Salts deposited on the surface of twigs, branches and evergreen leaves can cause excessive drying of foliage and roots. They can be taken up…Read more about Deicing Salts Helpful For People But Not Landscape Plants[Read More]

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Tis The Season To Sage

Thanksgiving dinners filled with the fragrance of sage-dusted turkey and dressing may be an American tradition, so you may be surprised to find out that the sage plant (Salvia officinalis) is native to the Mediterranean. Today sage is primarily used as a culinary herb, but in older times it was a common medicinal plant. The origin of the salvia name from the Latin salvus, “to save,” and salvere, “to heal,” underscores its medicinal value. Sage…Read more about Tis The Season To Sage[Read More]

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Water Now To Minimize Winter Injury

Dry summers are not that unusual in the Midwest. But this year gardeners really had to battle to maintain healthy plants when extremely high temperatures were accompanied by a lack of rain. And of particular concern this year is that the drought is lasting well into autumn, putting plants in poor condition to get through the winter when water will be unavailable due to frozen soil. Newly planted trees, shrubs and perennial flowers will be…Read more about Water Now To Minimize Winter Injury[Read More]

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Evergreen Needles Don’t Last Forever

Evergreens provide green color all year long but that doesn’t mean that the individual needles live forever. Evergreens shed their older needles to make room for new growth, but what makes them evergreen is that they retain some foliage all year long instead of shedding all of the leaves at once. Evergreen needles have varying life spans, depending on the species. Arborvitae and pine needles live for 2 years while spruce needles live 3-10 years….Read more about Evergreen Needles Don’t Last Forever[Read More]

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Evergreen Needles Don’t Last Forever

Evergreens provide green color all year long but that doesn’t mean that the individual needles live forever. Evergreens shed their older needles to make room for new growth, but what makes them evergreen is that they retain some foliage all year long instead of shedding all of the leaves at once. Evergreen needles have varying life spans, depending on the species. Arborvitae and pine needles live for 2 years while spruce needles live 3-10 years….Read more about Evergreen Needles Don’t Last Forever[Read More]

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Evergreen Needles Don’t Last Forever

Evergreens provide green color all year long but that doesn’t mean that the individual needles live forever. Evergreens shed their older needles to make room for new growth, but what makes them evergreen is that they retain some foliage all year long instead of shedding all of the leaves at once. Evergreen needles have varying life spans, depending on the species. Arborvitae and pine needles live for 2 years while spruce needles live 3-10 years….Read more about Evergreen Needles Don’t Last Forever[Read More]

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Page last modified: October 26, 2016

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