Brunnera macrophylla
Root Type: fibrous
Finish Size: 1 gallon
Dividable: no
Potting Soil: Commercial planting media
Growing Temperature: 65 degrees F
Soil PH: 5.8-6.2
Planting Level: at the soil line or slightly above
Weeks to Finish for Spring Sale: 6-8
Weeks to Flower: 8Root Trimming:
These are available from Walters Gardens, Inc. in a couple different sizes and generally do not need trimming.
Fertilizing:
Brunnara are light feeders, requiring nitrate levels of 50 ppm under a constant liquid feed program. A controlled-release fertilizer at a rate equivalent to 3/4 pound of nitrogen can be incorporated into the growing medium as well.
Moisture Level:
Average amount of irrigation; do not tolerate very dry or very wet soil conditions.
Pest and Diseases:
Aphids and slugs are the primary pests of Brunnera. Control both as needed. Aphids can be detected on or near the fresh new growth and on the underside of the leaves. Slugs are often difficult to locate, however leaf injuries will indicate their presence.
Other:
High light intensities can cause leaf scorch. We recommend growing Brunnera under at least 35% shade cloth during the summer months.