
Elderberry
Description
Propagation
Cultivation
Harvest |
|
Scientific name |
Sambucus nigra |
|
Common names, modern |
Black elder,
Boon-tree, Boortree,
Bothery-tree,
Bourtree, Common
elder,
Eldern,
Ellanwood,
Ellar, Ellarne, Ellen-tree, Ellhorn, European elder,
Hilder, Hillerne, Hylder,
Pipe tree,
Whusselwood
The
Elder tree in medieval
sources |
|
Comments |
The name may be derived from the use of hollow stems
of elder being used to blow on an kindle fires. These hollow stems were also
used to make musical instruments and popguns. |
|
Description |
|
Lifespan |
Perennial shrub or small tree |
|
Cold hardiness |
Zones 4-8, tolerates light frost |
|
Size |
15'
H by 15' W |
|
Habit |
Very full, sends up many arching small stems, needs
to be pruned in early spring to remove excess branches. |
Flower |
Flowers in June/July; flowers, called "elder blow," are small
and creamy white, held in flat,
drooping clusters called cymes |
Fruit |
Forms in August/September; dark purple,
almost black, berries with red juice. Leaves, twigs,
and seeds are toxic -- this said, elderberry jelly is excellent, as is
elderberry syrup, but both are indeed cooked. |
Foliage |
Leaves are alternate, with each pinnate leaf having 5-7 leaflets.
Margins are finely toothed. |
|
Comments |
As it grows, the elderberry will send branches every
which way; these need to be pruned in early spring, or their shade will
cause the lower branches to die off.
|
|
Propagation |
|
By seed |
When fruit is so dark it is almost
black, gather berries from several from different clusters; plant in
cold frame and leave them there over the winter. Watch for shoots and
transplant these to nursery bed in full sun after the last frost in the
spring; keep well watered through their first summer.
To grow inside,
gather berries as above, remove pulp thoroughly and let seed dry; store
in a warm place for 60 days. Then
cold stratify in refrigerator for 90
days. Remove from cold, plant 1/2" deep in 3" pot; grow on at 75 degrees
daytime, cooler in the evening. |
|
Germination temperature |
75 degrees |
|
Germination time |
14-35 days |
|
Moisture |
Keep evenly moist |
|
Light |
Does not need light to germinate |
| By cuttings |
Root cuttings - Dig 5" root
cuttings, about as big around as a pencil, in March. Place
lengthwise in pot and cover with about an inch of potting medium. Keep
moist and warm, and watch for shoots. When shoots have several
leaves, transplant to individual pots.
Green- and hard-wood cuttings
- Collect 4" cuttings with 3-4 nodes
before growth begins in the spring. Dip cutting in
rooting powder so that two lower nodes are covered; plant with those
nodes below surface of moist potting medium. Place
pot in plastic bag and keep soil slightly moist until you see new
growth.
Cuttings with leaves -
Sprouted cuttings also root well as long as
high humidity is maintained around them as they root. Take 4" cuttings
as early as possible (before July); each cutting should have 2-3 nodes.
Remove leaves so that only the top two leaves are left. Dip the two
lower nodes in rooting compound and place with these two nodes below the
surface of the potting medium. Place pot in plastic bag and keep soil
slightly moist until you see new growth. |
|
Cultivation |
|
Soil |
Tolerates most soils, but needs good drainage |
|
Moisture |
Needs adequate moisture, but tolerates dry periods once established |
|
Light |
Full sun to light shade |
|
Natural habitat |
Often near water along streams, in ditches, along fence rows |
|
Vigor |
Hardy; will sucker some, but not problematic |
|
Diseases |
Elderberries are susceptible to
whitewash fungus,
Hyphodontia sambuci.
Infected branches look like
someone splattered thick white paint
on them. Removed diseased
branches, and clean up under the tree as well. |
|
Pests |
Elderberries here in the upper
Midwest seem to be bothered by few insect pests. Rabbits are another
question, and will feed heavily on elderberry bark in a cold winter.
Birds like the fruit in the summer, but our elders bear heavily enough
that we're willing to share. |
|
Organic approaches |
Make a decoction
of 4 c. of the green leaves, covered with 2 c. boiling water. Cool over
night, then strain. Use as a spray, this will repel aphids and
caterpillars, and also help prevent mildew and leaf rot. Old gardeners
believed that this would also prevent blight in turnips, cabbages, and
fruit trees.
|
| Companion plants |
Elderberry is such an enthusiastic little tree that
it will shade out most plants that try to grow beneath its branches. You
can prevent this by pruning lower branches so that some light reaches
the ground. |
|
Harvest |
|
Season to bloom/bear |
Flowers bloom
June/July;
berries follow soon after in August/September |
|
Seed collection |
Collect seed when berries are
ripe |
|
Comments |
Elderberries on older shoots ripen sooner than those
on this year's growth, so the harvest can be spread out a bit. The fruit
makes wonderful jam and syrup. |
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