Type
bulbing, hybrid
Fennel variety
Orion Fennel
Orion is valued for smooth, round bulbs and good garden performance in cool seasons. It is a practical choice for home gardeners wanting tidy harvests.
Days to maturity
80-90
Best for
uniform bulbs, fresh cooking
About Orion
Orion is a hybrid bulb fennel known for large bulbs, good uniformity, and strong bolt resistance. It also holds in the field fairly well, which helps if harvest timing is not exact.
Growing Orion Fennel
Use Orion for spring or fall plantings where ordinary fennel tends to bolt, and space it well so the bulbs can round up fully. Keep the crop growing steadily, because growth checks can still trigger bolting, and cut bulbs when they are heavy and crisp, before the outer layers get coarse.
Full growing guide
For planting dates, care, and harvest that apply to all fennel, see the complete guide.
How to grow FennelOther fennel varieties
Variety characteristics are general guidance for US home gardens; performance varies by climate, soil, and season. Seed and plant availability differs by supplier. Page updated Aug 4, 2026.