Spotted spurge (Euphorbia maculata) is a dreadful perennial weed that can quickly take over a lawn or garden bed. It often grows in poor compacted soils or in-between cracks in pavement. Once established, it is difficult to eliminate it from your garden. Ideal temperature range for seed germination is 75 to 85 °F, and spurge will germinate […]
Archive for the ‘alkaline soil’ Category
‘Palibin’ Lilac A Good Choice For Small Landscapes
Dwarf Korean lilac (Syringa x meyeri ‘Palibin’) forms a dense multi-stemmed deciduous shrub, 4 to 5 feet high and 5 to 6 feet wide, with rounded top or canopy (USDA hardiness zones 3-7). It branches low to the ground. Flower buds form which are distinctively violet in color. In mid-spring this diminutive lilac is covered by billowy panicles of fragrant purple […]
Changing Bigleaf Hydrangea Flower Color
Bigleaf hydrangeas (Hydrangea macrophylla), aka “hortensia” hydrangeas, bear pink flowers in low acidic and alkaline soil and blue flowers in mildly acidic soil. Some tips about regulating soil pH and flower color in bigleaf hydrangeas follows. First, a short review about soil pH. Soil pH measures soil […]
Soil pH- What’s It All About
Soil pH is an indicator of the relative abundance of hydrogen (H⁺) ions and hydroxyl (OHˉ) ions in garden soils (Table 1). These ions play a very important part of soil fertility and a plant’s ability to absorb nutrients from the soil. The pH scale runs from 1 (highest acidity) to 14 […]
Stop Destroying Forsythias
Forsythia (Forsythia spp.), also called “yellow bells”, is an extremely popular spring flowering shrub (USDA hardiness zones 5-8). Their bright yellow flowers signal the coming of spring. However, many gardeners do not know how to prune them. Tall 8-12 foot forms of F. x intermedia are commonly sold at most U.S. garden centers. Forsythias grow from 2 to 10 […]
Purple Heart Tradescantia
Purple Heart tradescantia (Setcreasea pallida ‘Purple Heart’), formerly Tradescantia purpurea), is an annual trailing groundcover with purple stems and violet-purple foliage. This flowering vine is primarily grown for its vibrant foliage. Purple Heart is utilized in garden beds, large containers or hanging baskets. By summer’s end individual plants may grow 8-12 […]
‘PeeDee Ingot’ Liriope Brightens Dark Areas
If you live in the Southeastern U.S., another variety of liriope probably will not impress you. Here we call it “monkeygrass”. PeeDee Ingot liriope (Liriope muscari ‘PeeDee Ingot’) is no ordinary ground cover (USDA hardiness zones 6-10). ‘Peedee Ingot’ liriope is named after the Peedee River in South […]
Japanese Hydrangea Vine Worth The Wait
Japanese hydrangea vine (Schizophragma hydrangoides) ‘Moonlight’ is a deciduous woody vine (USDA hardiness zone 5 to 8). It is closely related to climbing hydrangea vine (Hydrangea anomala ‘Petiolaris’). This ornate climbing vine is valued for its silvery, silvery-green, heart-shaped foliage and large, flat-topped, lace cap hydrangea-like clusters (8-10 […]
Winter Damage On Crape Myrtles
Extremely cold winters of 2013-14 and 2014-15 have damaged many cultivars of crape myrtles (Lagerstroemia x indica). Don’t assume that new crape myrtles are hardy; many are rated hardy only to zone 7. Several of the U.S. National Arboretum cultivars are hardy in zone 6. Gardeners living in the […]

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