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Plant of the Week
Lobelia
| Scientific name | Lobelia erinus |
| Common name | Lobelia |
| Type | Annuals |
| Variety | Annual |
| USDA Zone hardiness | 1 - 8b |
| Exposure | Full sun |
| Height | Under 1' |
| Spread | Under 1' |
A low growing perennial generally grown as an annual. Grown in full sun to shade, does better in the cooler weather and often goes out of bloom when it gets hot. Look for heat tolerant cultivars. Cut back after first bloom, fertilize and water to maintain flowering in the summer.
Recent Question from Gardeners
Question
Tamarisks
I purchased a summer glow tamarisk last year. I reside in Northwestern Ontario. My problem is that a few of the branches seem to be dying off and all the garden sites say that either it likes moderate water or very dry conditions. Also it states to add mulch around it but do not place near the trunk. Can anyone help me on the watering and the mulch .
Answer
I would lean more to the dryer side for soil moisture, tamarisks are known to be quite tolerant of dry conditions and are often used in xeriscaping. Check the soil moisture by using a soil probe or digging a small hole, if the soil seem overly wet I would not worry about mulching. Mulch holds in soil moisture and keeps soil cool in direct sunlight. Warmer soil in the root zone will improve root growth and the overall health of the tree overtime. I would remove the dead limbs and give the tree sometime.
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