Noteworthy Books on Primroses
Call Number: QL 267 .P7 R53 2003
Publication Date: 2003-05-03
Designing and Planting a Woodland Garden
Publication Date: 2014-12-21
Call Number: SB434 .C57 2014
Publication Date: 2015-01-22
Gardening with Woodland Plants
Call Number: SB439.6 .J86 2007
Publication Date: 2007-03-15
The Shady Lady's Guide to Northeast Shade Gardening
Call Number: SB434.7 .Z54 2014
Publication Date: 2014-05-06
The Woodland Garden
Call Number: SB439.6 .F66 2004
Publication Date: 2004-03-06
There are over 400 species of primulas, or primroses, found in habitats ranging from marshlands to alpine slopes. Primrose foliage forms rosettes – clusters of leaves in a circle - that grow close to the ground. The flowers grow either clustered together among the leaves or on stalks in umbels, whorls or spikes. Primroses are ideal for a waterside garden, shade garden, or rock garden and some varieties can be used as bedding plants.
Basic Care for Primulas
- Primroses tend to prefer climates with cool summers — plant in partial shade to avoid the intense summer heat. Many primroses will take full sun, but usually require constant or at least good moisture levels.
- As a rule, primroses do not like to dry out. This does not mean that they like to be water-logged. Many will survive in wet sites, but they need good drainage. To ensure good drainage, add coarse gravel (grit) or sharp sand to the soil.
- Primroses do not like windy sites where they will dry out.
- Primroses tend to like nice, loamy soil. Mulching your plants with shredded leaves will ensure that there is a rich supply of humus – rich, broken down organic matter.
- Amending your soil with well-decomposed compost will improve your soil’s moisture retention and will create a nutrient-rich environment.
- Fertilize your primroses in the early spring with either a balanced fertilizer or a bloom booster (
10-10-10or 5-10-5). Double-flowering primroses are heavy feeders.
- After double primroses have flowered, fertilize them with liquid fertilizer to ensure healthy leaf growth. These plants exhaust themselves when flowering and do well with an additional mulch of composted manure after flowering.
- Many primroses multiply freely. Divide the plants in the fall or early spring by digging up the rosettes and pulling them apart. Make sure that the transplants are well watered for several weeks.
- The roots of primroses develop from the crown of the plant (the base of the rosette). Plant them at the level of the crown and mulch around them with shredded leaves, well-decayed compost or manure, making sure not to pile the mulch on the crown.
- The primroses that you buy from your florist around Mother’s Day (polyanthus primroses) are generally used as annuals. They will flower for up to 8 to 10 weeks in April and May if you deadhead them. Like many other primroses, they like good moisture and rich soil. If you would like to grow them as perennials, plant them in partial shade to shade.
Some Easy Varieties for Your Garden