Variety field guide
What to expect from Florence Fennel
Florence Fennel is a perennial florence fennel selection grown for aromatic stems, leaves, swollen bases, or seed.
Read the complete product descriptionTraits, flavor, garden use, variety notes, and the full catalog record
Florence Fennel is best suited to bulb harvest, fronds, seed, and beneficial-insect flowers. Its defining kitchen character is sweet anise flavor. Florence fennel is selected for swollen leaf bases, while sweet fennel is grown primarily for foliage and seed.
About Florence Fennel
Florence Fennel is a perennial selection of florence fennel, with a clumping/tufted habit and an expected height or spread of 31–36 in. It is best suited to aromatic stems, leaves, swollen bases, or seed. Notable traits include harvest the named leaf, stalk, swollen base, or mature seed stage; aromatic celery, anise, or spice notes according to crop.
Choose Florence Fennel when the garden plan calls for aromatic stems, leaves, swollen bases, or seed and the listed clumping/tufted habit fits the available space.
History and provenance
This crop belongs to the carrot family, a group with a long history in Eurasian and Mediterranean foodways. The family includes leaf, root, stem, spice, and seed crops, but their culinary traditions do not prove a specific commercial seed lot or breeder lineage. Florence fennel is selected for swollen leaf bases, while sweet fennel is grown primarily for foliage and seed. Both belong to Foeniculum vulgare but should not be managed as identical crops.
Growing facts
| Scientific name | Foeniculum vulgare Mill. Azoricum Group |
|---|---|
| Life cycle | Perennial |
| Maturity | 90-99 Days |
| Germination | 7-14 Days at 60–75 °F |
| Seed depth | 1/4 in |
| Plant height / spread | 31–36 in |
| Growth habit | Clumping/Tufted |
| Spacing | 12 in between plants; 24 in between rows |
| Sunlight | Full sun |
| Soil | Loamy; pH 6.5–7.0 |
| Water | Moderate |
| Support | No-Support |
Starting Florence Fennel from seed
Sow 1/4 in deep and keep the seed zone evenly moist. Expect emergence in 7-14 Days when the seed-zone temperature is near 60–75 °F. Germination preparation: Use a fine, evenly moist seed-starting mix or prepared seedbed. Light requirement: Cover evenly to 1/4 in. Soaking: None required. Stratification: None required. Scarification: None required.
Planting and care
Plant during spring/Fall and provide full sun. Space plants 12 in apart with 24 in between rows. Use loamy with a pH near 6.5–7.0, and follow a moderate watering plan. Support requirement: No-Support. Frost response: Semi-Hardy. Large permanent container possible, but in-ground culture usually supports longer life
Harvest and use
Approximately 90-99 Days, from direct sowing to a market-size swollen leaf base. Weather, soil temperature, and planting method can shift the actual harvest date. Harvest: Harvest the named leaf, stalk, swollen base, or mature seed stage. Uses: Aromatic stems, leaves, swollen bases, or seed; kitchen use and seed saving. Flavor: aromatic celery, anise, or spice notes according to crop. Seed saving: Insect-pollinated umbel crop. Best uses include aromatic stems, leaves, swollen bases, or seed. Flavor and eating quality: aromatic celery, anise, or spice notes according to crop.
Saving seed
Select several healthy, true-to-type Florence Fennel plants that match the expected clumping/tufted habit and overall plant form. Avoid saving seed only from the earliest or largest individual unless that is your deliberate selection goal. Pollination system: Insect-pollinated umbel crop. Compatible plants of the same species can cross through insect activity; wild relatives matter for carrot and parsnip. Separate compatible varieties that may flower together, or use cages, barriers, hand pollination, or another documented control appropriate to the crop. Florence Fennel is a perennial. Seed production may require overwintering, vernalization, or more than one growing season, depending on climate and crop biology. Clean the seed carefully, dry it thoroughly away from direct heat, label the lot with variety and year, and store it cool, dark, and dry. Test germination before an important planting or distribution season.
Common problems
Common concerns: Carrot rust fly or root maggot where present, aphids, caterpillars, leaf spots, damping-off, and uneven emergence from crusted soil. Management: Use clean seedbeds, rotation, careful watering, prompt thinning, airflow, and locally appropriate exclusion methods. Diagnosis note: Similar symptoms can have different causes. Compare plants of the same age, record weather and irrigation, and use local Extension or diagnostic support before applying a control.
Frequently asked questions
Frequently Asked Questions - Florence Fennel
When is Florence Fennel ready? Use 90-99 Days. Approximately 90-99 Days, from direct sowing to a market-size swollen leaf base. Weather, soil temperature, and planting method can shift the actual harvest date.
How long does germination take? Expect 7-14 Days at about 60–75 °F. Cooler, hotter, crusted, saturated, or dry seedbeds can slow emergence.
How large does it grow? Expect about 31–36 in with a clumping/tufted habit. Space plants 12 in apart and rows 24 in apart. Support: No-Support.
Can it grow in a container? Large permanent container possible, but in-ground culture usually supports longer life Use a container with drainage and enough volume to maintain the listed spacing and steady moisture.
Can I save seed? Insect-pollinated umbel crop. Keep compatible varieties isolated and allow selected plants to reach full seed maturity.
