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Everything about the Fennel Plant


Common Name: Fennel, sweet fennel, common fennel

Latin Name: Foeniculum vulgare

Family: Apiaceae

Plant Time: Early-Summer

Mature Size: 4–6 feet tall, 1.5–3 ft. wide

Sun Preference: Full sun

Soil Preference: Moist, well-drained soil with Acidic pH levels (5.5 - 6.8)

Bloom Time: Summer

Flower Color: Yellow

Native Area: Mediterranean

Toxicity: non-toxic

Growth Rate: -

Wildlife Value: -

Table of Contents

Welcome to the fascinating world of fennel (Foeniculum vulgare), the herbaceous wonder that never fails to mesmerize! This delightful plant traces its origins to the Mediterranean region. With feathery, emerald-green foliage and stunning yellow umbel-shaped flowers, fennel is a true visual delight in any garden.

Its aromatic, anise-like flavor lends itself perfectly to a multitude of culinary creations, from salads to soups and beyond. What’s even more delightful is that fennel is surprisingly easy to care for, making it a must-have for both seasoned and novice gardeners alike.

Most common fennel varieties:

  • common fennel (Foeniculum vulgare var. vulgare)
  • sweet fennel (Foeniculum vulgare var. dulce)
  • bulb fennel – Florence fennel or finocchio


If you are a beginner gardener, you are definitely in luck with this one. Fennel does not require special care, but you should pay attention to these:

  • Light: Fennel prefers full sunlight, meaning at least six hours of direct sun on most days. Shady conditions will make it leggy and floppy.
  • Soil: It loves moist, fertile, well-drained soil with acidic pH.
  • Water: The key here is moist but not soggy. When the soil feels dry, water it, but never to the extent that it becomes waterlogged.
  • Temperature: Fennel thrives as a perennial in its designated zones but is often grown as an annual; it is sensitive to frost and cold, prone to bolting in hot and dry conditions, and flourishes in temperatures between 60-70°F with moderate humidity.

If you want to get the best results, make sure you are armed with the right gardening equipment!


There are several methods you can go with when growing your own Fennel. The most common ways include seed propagation, where seeds are sown directly into the garden soil or started indoors and then transplanted, and stem cuttings, where healthy stems are cut and rooted in moist soil or water until they develop roots of their own.

Common Pests

Frequently Asked Questions

How long does it take fennel to grow?

Fennel is not the fastest-growing plant in the garden. It takes around 90 days for it to be ready for harvest from planting.

Will fennel survive winter?

As long as it does not go below 0F (-17C), fennel can survive the winter.

What month should I plant fennel?

In late spring, after the last frost, acclimatize young fennel plants to outdoor conditions through hardening off and transplanting them carefully into prepared ground.

Does fennel like shade?

Fennel prefers full sunlight and does not thrive in shade. It requires at least six hours of direct sunlight each day to grow and develop properly.