|
RHODODENDRON, AZALEA
& MOUNTAIN LAUREL
SELECTION
Rhododendrons, azaleas & mountain laurel are broadleaf evergreens
prized as ornamental shrubs the world over. Varieties we carry are
all hardy in our area, so selection depends mainly upon size & color
choice. Bloom times vary from spring to early summer. Also consider
the overall mature size, growth rate, and leaf & bloom size. Read
the tag on the plant or ask our staff for assistance if you're unsure
of which variety is best for you.
SITING
Most broadleaf evergreens prefer a protected site in part shade
with rich, humusy, acid soil. Adequate moisture and good drainage
are essential. Most soil in our area is acidic, but use a pH tester
if you're unsure.
PLANTING
As with other shrubs, dig a hole about twice the width of the container,
and not much deeper. Plant the shrub at the same depth as it was
in its container, and loosen any compacted roots. Backfill with
soil amended with up to 1/2 peat moss or peat humus, or use Complete
Planting Mix. Water in well with a long, slow trickle, rather than
flooding. Maintain moist soil for 2 weeks after planting.
WATERING
Water is the key to good growth. During rainy periods, natural moisture
is usually sufficient. Plant roots should be moist, but not waterlogged.
In the absence of natural rainfall, water is especially important
during the following periods of greatest need :
- Immediately after planting
- After flowering during summer when new leaves & buds are forming
- In fall prior to winter dormancy
- Any period of a week to 10 days with out at least 1" of rain
WEEDING
Weeds not only compete for moisture & nutrients, but also block out sunlight and reduce air circulation. Be careful weeding close to rhododendrons, azaleas & mountain laurel; their fibrous root systems lie just beneath the surface and can easily be damaged by cultivation. Hand weeding is best.
MULCHING
Mulch keeps the soil moist and weeds out. 2-3" of bark mulch works well. Avoid mounding mulch up around trunk of shrub. A donut configuration works well.
FEEDING
Most azaleas, rhododendrons & mountain laurel prefer a food for acid loving shrubs. We recommend Espoma Holly Tone or Miracid. Follow the directions on the package for frequency of feeding, but avoid feeding past mid-August. Tender new growth is more prone to winter kill.
PRUNING
Prune for shape or healthy structure immediately after flowering. Pruning later in the season can remove bud set for the following year. Use a sharp pruner and cut above a rosette of leaves. To encourage rhododendrons to branch sideways and form a more dense plant, freely pinch out terminal vegetative buds. This is most important on younger, non flowering plants. Most ungainly rhododendrons can be rejuvenated to an improved form by heavy pruning done in stages over a period of 2-3 years.
WINTER PROTECTION
We recommend spraying with Wilt-Pruf around the time of hard frost ( usually around Thanksgiving ). This helps keep the leaves from drying out, & prevents winter burn. Be sure to spray when it's 40 degrees or above.
DECIDUOUS AZALEAS
Deciduous azaleas, unlike evergreen azaleas lose their leaves in fall.
The flowers which occur in a wider range of colors than the evergreens,
emerge in spring before the leaves. In general deciduous azaleas can
be sited in more sun than evergreen azaleas. Otherwise, care is the
same, except that winter protection of the leaves is not necessary.
Back
to top
Newfane
Greenhouse >> Care & Maintenance
>>
|