Gadenin日本語Get the appWork backwards from your first autumn frost
Anise is the rare kitchen garden crop where the whole season has to be planned before you sow anything. It needs about four frost free months from sowing to dry ripe seed, and it will not be hurried by feeding, watering or any trick of protection at the end. Count back roughly 120 days from your average first autumn frost. If that date falls before your soil reliably reaches 60F (15C), your garden cannot ripen anise seed outdoors and you should plan for a leaf and green seed crop instead.
Where the season is long enough, the schedule is short and unforgiving. There is one sowing, one flowering, one harvest and no second chances. Everything that follows is about not losing days at any stage, because a week lost in spring is a week missing in autumn when the frost arrives.
| Stage | Days from sowing | What you should see |
|---|---|---|
| Emergence | 10 to 21 | Fine seedlings with rounded first true leaves |
| Thinning | 25 to 35 | Two or three true leaves, stand ready to reduce |
| First leaf harvest | 40 to 50 | Rounded lower leaves large enough to cut |
| Support in place | 50 to 60 | Plants six to ten inches (15 to 25 cm) tall |
| Flowering | 65 to 85 | Flat white umbels opening |
| Green seed | 85 to 100 | Full sized soft green seed, strongest aroma |
| Ripe dry seed | 100 to 120 | Gray brown seed shedding from the first heads |
These figures assume a warm summer. In a cool cloudy season add two to three weeks to everything after flowering, which is exactly the margin that decides whether the crop finishes.
Spring: wait, then sow once
The temptation in spring is to sow early to gain time, and with anise that backfires completely. Seed in soil below 60F (15C) swells and rots, and you lose not days but the whole sowing plus the fortnight it takes to notice. Test the soil rather than the calendar, and sow the moment it is genuinely warm, which is usually two to three weeks after the last frost.
Sow thickly into a fine, warm, free draining bed in the sunniest sheltered spot you have, cover with a quarter inch (6 mm) of soil, and keep the surface damp until the seedlings appear. Then weed by hand and do very little else. The first six weeks are slow and undramatic, and the only real jobs are keeping the weeds off and the moisture even.
- Warm the bed if your spring is slow A sheet of clear plastic or a cloche over the bed for two weeks before sowing can lift the soil several degrees and bring your sowing date forward by a fortnight.
- Sow once, thickly, in a band One main sowing as soon as the soil hits 60F (15C). A broad band rather than a thin line, thinned to four to six inches (10 to 15 cm) apart so the plants support each other later.
- Hand weed for the first six weeks The seedlings are small and slow and lose badly to weeds. Do not hoe close to the band, because a hoe cuts taproots you cannot see.
Early summer: leaf, support and flowering
By early summer the plants are growing quickly and the leaves change character, from rounded and toothed at the base to fine and feathery up the stem. This is when the leaf harvest happens, and when the support has to go in. Twiggy brushwood pushed among plants six to ten inches (15 to 25 cm) tall vanishes into the foliage and holds the whole block through the storms that come later. Putting it in after the plants have flopped is far less effective and damages roots.
Flowering follows about ten to twelve weeks after sowing, as flat white umbels on branching stems. Keep watering steady up to this point, then ease off. The umbels bring in hoverflies, lacewings and parasitic wasps in numbers, which is worth having anywhere near your other crops, and once they are open the countdown to the harvest is running.
- Take the main leaf harvest before the stems rise Cut outer lower leaves while they are still broad and rounded. Once the upper foliage has gone thread like the leaf flavor thins out.
- Get the support in before flowering Brushwood among the plants, or string on corner canes at ten inches (25 cm) and eighteen inches (45 cm). After flowering the heads are heavy and the stand goes over in the first downpour.
- Ease off the water as the umbels open From flowering onward the plant needs warmth and dryness. Watering a flowering stand delays ripening and encourages mold in the heads.
- Note the date the first umbel opens Ripe seed follows in four to six weeks. Compared against your first frost date, this tells you immediately whether the crop will finish.
Late summer into autumn: harvest before the frost
Seed ripens unevenly over two or three weeks, main heads first and side heads after. Go over the stand two or three times rather than clearing it in one pass, cutting each head when its first seeds have turned gray brown and are just starting to shed. Cut in the morning once the dew has dried and bag the heads immediately, because ripe anise sheds at a touch.
Anise is frost tender and the crop ends the night the first frost lands. Watch the forecast from late summer, and when frost is coming cut everything that remains, however green, and hang it under cover. Seed close to ripe will continue to fill and dry on the cut stem; seed left out to freeze is lost outright. Then pull the spent plants, which compost readily, and note what happened.
| Season | Main job | What to watch for |
|---|---|---|
| Late spring | Wait for warm soil, prepare and warm the bed | Soil temperature reaching 60F (15C) |
| After the last frost | Sow thickly in a band, keep the surface damp | Slugs on the emerging seedlings |
| Early summer | Thin once, hand weed, harvest lower leaves | Weeds smothering the slow seedlings |
| Midsummer | Put support in, ease off watering as flowers open | Aphids in the developing heads |
| Late summer | Take green seed, watch the heads color | Storms flattening an unsupported stand |
| Early autumn | Cut heads in passes, hang and dry | First frost forecast. Cut everything if it comes |
| Mid autumn | Thresh, winnow, store, clear the bed | Mold in bagged heads that went in damp |
Nothing overwinters. Anise is killed by frost, does not regrow, and leaves no crown or root to protect. Once the harvest is in, the bed is free for an autumn sowing of something else.
The records that decide next season
Anise is decided by dates more than by technique, and the same set of notes answers every question you will have next spring. Keep them somewhere you will find them, because the decisions they inform are made in a single week at the start of the season when there is no time to work it out from memory.
- Sowing date, soil temperature and emergence date Together these tell you whether you sowed too early into cold ground or too late into a shortened season. It is the most common thing to get wrong and the easiest to correct.
- The date the first umbel opened Set against the sowing date it gives you the real time to flowering in your own garden, which is the number every other decision hangs off.
- First and last seed harvest dates, and the first frost date The margin between your last cut and the first frost is how much slack your season actually has. A margin under two weeks means sowing earlier next year.
- Which bed it grew in and how sheltered it was Compare a warm sheltered corner against an open bed across two seasons. The difference in ripening date is often two weeks, and two weeks is the whole margin.