According to almanac tradition, broccoli belongs in the first quarter of the Moon, between the new moon and the first quarter, on a day when the Moon sits in a fruitful or semi-fruitful sign. For the months covered here, the traditional days fall in March, April, July and August of 2027. No effect of the Moon on broccoli has been proven, so treat every date below as custom.
What the tradition says about planting broccoli
The quarter rule
Almanacs that follow planting by the moon sort crops into types and give each type a stretch of the lunar cycle. Broccoli belongs to the leaf type, meaning leafy crops that bear above ground, along with lettuce, spinach, cabbage and celery. The almanac rule is to plant them in the first quarter, which runs from the new moon to the first quarter. That stretch is the waxing part of the cycle, and the page on planting in a waxing moon covers it in more detail.
| Crop type | Examples | Traditional quarter |
|---|---|---|
| Leaf (broccoli is here) | Lettuce, spinach, cabbage, broccoli, celery | First quarter, new moon to first quarter |
| Fruit | Tomatoes, peppers, beans, squash, corn | Second quarter, first quarter to full moon |
| Root | Potatoes, carrots, garlic, onions, beets | Third quarter, full moon to last quarter |
The fourth quarter, from the last quarter to the new moon, is the traditional rest period. The almanac assigns it to weeding, pruning, turning the soil and composting rather than planting.
What is and is not proven
Moon-sign almanacs add a second filter on top of the quarter. This convention labels Cancer, Scorpio and Pisces fruitful, and Taurus, Libra and Capricorn semi-fruitful. Aries, Gemini, Leo, Virgo, Sagittarius and Aquarius are labeled barren, though sources differ on Virgo, Sagittarius and Aquarius.
The physical case is thin. The Moon’s phase cycle lasts 29.53 days, and its tidal pull at the Earth’s surface is about 1.1 millionths of a meter per second squared at its strongest. That is roughly one ten-millionth of gravity, far too small to move anything as small as a seed or a root (figures from the NASA Moon Fact Sheet). So the dates on this page are a custom some gardeners enjoy keeping, not a measured effect.
Traditional broccoli planting days, 2026 and 2027
The days, month by month
Each row combines the first-quarter rule with a fruitful or semi-fruitful Moon sign.
| Month | Traditional days | Convention label of the sign |
|---|---|---|
| March 2027 | March 8 (Moon in Pisces), March 11-13 (Moon in Taurus) | Pisces fruitful, Taurus semi-fruitful |
| April 2027 | April 8-9 (Moon in Taurus), April 12-13 (Moon in Cancer) | Taurus semi-fruitful, Cancer fruitful |
| July 2027 | July 4 (Moon in Cancer), July 9-10 (Moon in Libra) | Cancer fruitful, Libra semi-fruitful |
| August 2027 | August 6-8 (Moon in Libra/Scorpio) | Libra semi-fruitful, Scorpio fruitful |
The months shown are those when gardeners in much of the country plant broccoli. Your state may start earlier or later, so only the rows that fall inside your own state’s planting window count. A row outside that window is not a date for you, whatever the Moon is doing.
How to read the edges
Days are read at noon Eastern time (ET), and the Moon changes sign during the day. Treat the first and last day of each run as soft edges. On March 11-13, for instance, the Moon is in Taurus at noon ET on each of those days, but it may have entered or may be about to leave that sign at other hours. Readers in other time zones should expect the same kind of shift at the boundaries.
Gardeners who follow the biodynamic system of Maria Thun use a narrower sort. Their leaf days are Cancer, Scorpio and Pisces only, with Taurus counted as a root day and Libra as a flower day. If you prefer that reading, the rows to use are March 8, April 12-13, July 4, and the Scorpio part of August 6-8. The almanac convention above is the looser of the two.
Check your state first: when to plant broccoli where you live
The order of decisions matters more than the Moon. Start with your state’s planting calendar for broccoli, which tells you which weeks are open at all. Our guide on when to plant broccoli where you live lays that out, and the state guides cover the local calendar for the rest of the garden. Those pages own the dates, soil conditions and frost timing. This page does not repeat them.
Once you have your window, the Moon comes in as an optional second step. Frost dates and soil temperature decide whether broccoli can go in the ground. The Moon, if you choose to follow it, only picks among days that your calendar already allows. A traditional day outside your state’s window is not a reason to plant, and a traditional day inside it is a preference, not an instruction.
In practice, that means reading the table from the bottom up. Find the weeks your state allows, then look for rows that overlap them. In some states, only one or two rows will overlap. In others, none of the months shown will fit, and that is a normal result. The month list here is an approximation used to choose rows, and your state’s own calendar overrides it.
If no traditional day falls in your window, you have two honest options. You can plant on a day your calendar supports and skip the Moon for that planting, or you can wait for the next traditional day only if your state guide says waiting is fine. Either choice is yours to make, and neither is a mistake as far as the almanac goes.
A fair way to try it
Almanac rules are easy to believe after one good season and easy to drop after one bad one. A fair test needs a comparison inside your own garden. Here is a simple setup:
- Choose a week that falls inside your state’s planting window and contains a traditional day from the table.
- Plant half your broccoli on the traditional day and half on an ordinary day in that same week, in the same bed conditions and from the same seed packet.
- Label both groups clearly with tags or stakes, noting the date and whether it was a traditional day.
- Keep notes on when seedlings emerge and, later, on the harvest from each group.
One season will not settle anything. Weather, pests and small differences in the bed can outweigh any Moon effect, and a handful of plants is a very small sample. If the two groups differ, that could be chance. If they match, that is also only one season’s answer.
Still, this is the only way a home gardener can judge the custom for their own plot. Repeating the split over several years, with the same notes, gives you something no almanac can: your own record.
Questions about planting broccoli by the moon
Does the tradition say to plant broccoli in a waxing or a waning moon?
Waxing. According to almanac tradition, leaf crops such as broccoli go in during the first quarter, which runs from the new moon to the first quarter. The waning half of the cycle is assigned to other work: root crops in the third quarter, and rest tasks in the fourth.
What if a traditional day falls during a frost?
The calendar of your place comes first. The tradition has no rule that overrides a frost or cold soil, and the almanac itself treats the Moon as a way to choose among days that are otherwise open. Check your state’s planting guide, and if the traditional day does not fit, use another day or the next row in the table.
Do I need to follow the Moon sign as well as the quarter?
No. The quarter rule is the older and simpler custom. The sign filter was added by moon-sign almanacs, and sources differ on some of the labels. The rows in the table above use both, so you can follow only the quarter if you prefer, or use the stricter biodynamic reading described earlier.