Excellent choice for beds and borders, edging, city gardens, cottage gardens.Provide consistent moisture throughout the growing season. Appreciates some light afternoon shade in hot summer climates.
#Ageratum blue planet full
across (7 cm), from late spring to frost. Here is to planting and growing ageratum in your landscape this year – and to enjoying beautiful blooms from late spring until the first frost! For more articles on annual flowers, check out our Annual Flower Tab on the blog.One of the tallest, Ageratum houstonianum 'Blue Horizon' (Floss Flower) is a frost-tender annual boasting fluffy lavender to purplish-blue flower clusters, up to 3 in. When old or decaying blooms remain on the plant, the plant will use a portion of it’s energy to attempt to maintain them.īut by removing flowers that are past their prime, all of the plant’s energy will go towards new bloom production. Last but not lease, regular deadheading is a must for keeping bloom production high.
#Ageratum blue planet how to
Deadheading To Promote More Blooms – How To Grow Ageratum Fertilizing ever 14 to 21 days with light applications will keep plants blooming strong. Keep the feedings light but on a consistent basis to supply a steady stream of nutrients. Granular fertilizers work well, as will liquid fertilizers such as compost tea. For ageratum, use an all-purpose, balanced, slow release fertilizer. In addition, providing the plants with a steady and light application of fertilizer every few weeks encourages strong blooming. Plants should receive at least 1 inch of water per week, either from rain or watering. The gorgeous blue mounded blooms fill the plant with loads of color.Īgeratum are fairly drought resistant, but will flower more profusely with adequate water. One of the larger varieties, Blue Horizon will grow to 24″ in height in bed spaces. This will allow plenty of nutrients for plants as they grow and establish in the beds.īlue Horizon Ageratum. When planting in beds, work in generous amounts of compost before seeding or placing transplants.įor transplants, use a 50/50% ratio of soil and compost to fill planting holes. Like most annuals, ageratum grows best in fertile, loose and well draining soil. Always remember that when it comes to ageratum, the more sun the better! This can especially be an issue for hanging baskets that are placed under porch eaves or roof lines. Make sure to find a location where plants will receive at least 6 to 8 hours of direct sunlight each day.Īlthough it can grow and survive in shadier locations, bloom sets will suffer from not enough light. Planting AgeratumĪgeratum will bloom best in locations with full sun. A week or so of daytime temperatures in the 70’s and lows in the low 50’s is usually enough to warm the soil enough for planting. Sow seeds after the threat of frost has passed, allowing the soil to warm to at least 55 (F) degrees. Seed can be directly sown into beds spaces, or grown indoors to create transplants that are ready to bloom early in the season. Ageratum looks right at home as a bedding plant, or in containers, planter boxes or hanging baskets.
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