Side by side
Pick two or three seeds to see how they grow, side by side: sprouting, spacing, sun, water, frost and pet safety in one table.
Comparing Florence Fennel vs. Asparagus
The comparison
| Fact | | |
|---|---|---|
| Difficulty | Moderate | Moderate |
| Life cycle | Not yet verified | Perennial |
| Germination time | 7–10 days | Not yet verified |
| Germination temperature | Not yet verified | 18–27 °C64–81 °F |
| Sowing depth | 6 mm¼ in | 1.5–2 cm½–¾ in |
| Spacing between plants | 20–30 cm8–12 in | 30–46 cm12–18 in |
| Sun | Full sun | Full sun |
| Water | Moderate | Not yet verified |
| Containers | Yes | Not yet verified |
| Frost tolerance | Half-hardy (light frost) | Hardy |
| Soil pH | pH 6.5–8.0 | pH 6.0–8.0 |
| Toxicity to cats | Non-toxic | Not yet verified |
| Toxicity to dogs | Non-toxic | Not yet verified |
| Links |
Up close
What each one is, in a few lines, with the full growing guide one click away.
VegetablesFoeniculum vulgare var. azoricum
Florence fennel is a cool-season vegetable grown for its edible bulbs. It is sown in full sun and needs evenly moist soil to form good bulbs and avoid bolting.
How to grow florence fennelVegetablesAsparagus officinalis
Asparagus is a long-lived perennial vegetable that most gardeners start from crowns. Growing it from seed adds a year or more before the first harvest, and the plant needs full sun.
How to grow asparagusKeep comparing
Add a third seed, or swap one for a close relative from the same category.
Florence Fennel vs. Asparagus vs. Acorn SquashAdd acorn squash as a third
Florence Fennel vs. Asparagus vs. Armenian CucumberAdd armenian cucumber as a third
Florence Fennel vs. Asparagus vs. ArtichokeAdd artichoke as a thirdFlorence Fennel vs. Acorn SquashFlorence Fennel against another vegetableAsparagus vs. Acorn SquashAsparagus against another vegetableFlorence Fennel vs. Armenian CucumberFlorence Fennel against another vegetableThe table, row by row
Every row is a fact from each seed's own profile, lined up so the differences stand out.
Germination time and temperature
How many days the seeds take to sprout, and the temperature range they sprout in.
Sowing depth and spacing
How deep to sow each seed and how far apart the plants should grow. “On the surface” means the seed isn't covered.
Days to maturity and life cycle
How long until the plant is ready, counted from sowing or from transplanting (each value says which). Annuals live one year, biennials two, perennials longer.
Sun and water
Full sun means 6 or more hours of direct sun a day, partial shade a few hours. Water needs are rated low, moderate or high.
Containers, frost tolerance and soil pH
Whether it grows in a pot, with the smallest pot when it's known. Frost tolerance runs from tender (no frost) to hardy. Soil pH 7 is neutral.
Toxicity to cats and dogs
Whether the plant is toxic to cats and dogs.
Quick wins
Days from sowing until the first shoots appear, in good conditions.
Pet friendly
Listed as non-toxic to both cats and dogs. Each seed's page has the details.
Not safe for pets: borage, buckwheat, caraway, carnation and 14 more.
Comparing
Each seed's page explains how to grow it from seed, with facts researched and reviewed by our editors.
