|
Organic Fennel Seeds::Orion F1 Fennel
Organic Fennel - Growing InformationPrintable version of this page
|
Fennel
|
Fennel (Foeniculum vulgare) is a hardy annual
in the Umbelliferae family, which
includes parsnip, carrot, dill, chervil, coriander, parsley, skirret and
celery.
- Bulbing-types produce large sweet bulbs.
- Non-bulbing (leaf) fennel is grown as an herb or for seed and the
attractive, feathery leaves.
|
|
Soil and Nutrient
Requirements
|
|
Fennel
needs deep, well drained, moderately fertile soil with a pH from 6.1-8.0. It
has a very deep taproot.
|
|
Position
|
|
Full Sun
|
|
Seeding Depth
|
|
1/4-1/2”
|
|
Plant Spacing
|
|
Direct seed at 2” and thin to 6-8"
|
|
Row Spacing
|
|
18”
|
|
When to Sow
|
|
Direct
seed fennel mid-spring through late summer, or start transplants 4-5 weeks
before planting date. Plant outdoors after danger of hard frost has passed.
Bolting can result from disturbing the roots.
|
|
Frost Tolerant
|
|
Yes
|
|
Drought Tolerant
|
|
Yes.
|
|
Heat Tolerant
|
|
No
|
|
Seed Specs
|
|
7M
seeds/oz avg. M=1,000
|
|
Seeding Rate
|
|
400
plants/100’ double row using 6” plant spacing; 58,100 plants/acre, using 6”
plant spacing, 18” row spacing.
|
|
Harvest
|
|
Harvest bulbs at 3-4” in diameter.
|
|
Storage
|
|
Fennel is
delicate and will dry out quickly in storage. Store in cooler as close to
freezing as possible. Quality will keep for 3-4 days.
|
|
Pest Info
|
- Aphids, whitefly and
lepidopterous larvae can be controlled by floating row cover in areas
where they are a problem.
|
|
Disease Info
|
- Fungal leaf blights caused by
Alternaria dauci or Cercospora carotae can cause severe defoliation and
greatly reduce yields. Generally, cercospora blight appears earlier in
the season than alternaria blight. Both these fungi are seed-borne but
can also be spread by crop residue from previous years.
- White mold (Sclerotinia
sclerotiorum) manifests as a cottony white mycelium around roots and
lower plant parts, usually late in the season. Avoid planting in areas
which are shady or have poor drainage, practice crop rotations with
non-vegetable crops.
|
|
Seed Saving
Instructions
|
|
Insect
pollinated annual. Varieties should be isolated by ½ mile. When umbels are
dry they may be harvested from the plant. Seeds will retain 50% germination
for four years.
|
|
|