May gardening 2018
Prune spring-flowering shrubs such as forsythia that have already flowered.
Fertilize roses early this month or mid-month if you already fertilized last month. Use a 20-20-20 liquid solution when flower buds are set. Mulch around the plants to retain moisture.
Stake perennials before they reach 6 inches.
Pinch back fall-blooming perennials such as chrysanthemums, asters, and tall sedums once a week. Continue reading “Horticulture Report – May 2018”
Natural areas on the College of DuPage’s Glen Ellyn campus help students and the community connect with the environment while providing educational opportunities.
Read the complete article at http://www.dailyherald.com/submitted/20180411/cods-prairie-gives-students-hands-on-education/
Lift and divide perennial plants now to improve their vigor and create new plants for your garden.
Divide Hostas before they come into leaf.
You can start to move evergreen shrubs and trees now provided the soil isn’t frozen or waterlogged.
Plant summer-flowering bulbs such as Lilies, Gladiolus and Ranunculus into beds, borders and containers.
Feed trees, shrubs and hedges with a balanced, slow-release fertilizer by lightly forking it into the soil surface. Roses are greedy plants and will greatly benefit from feeding as they come into growth. Continue reading “Horticulture Report – April 2018”
photos from our March program