When to Plant Kale by the Moon: Traditional Days for 2026 and 2027

According to almanac tradition, kale is a leaf crop, so it is planted in the first quarter, between the new moon and the first quarter, while the Moon sits in a sign the convention labels fruitful or semi-fruitful. The Traditional Days for 2027 are in the table below, starting with March 8, 2027. No effect of the Moon on kale has been shown, and your state’s calendar comes before any of it.

What the tradition says about planting kale

Almanacs that follow planting by the moon sort crops into three types. Kale lands in the leaf group, which covers leafy crops and crops whose seed is outside the fruit. The almanac rule is to plant this group in the first quarter of the lunar cycle, the stretch from new moon to first quarter. A second filter, the Moon’s sign, narrows the first quarter down to particular days.

Here is the quarter rule in its shortest form.

Nothing in this tradition has been proven for kale or any other crop. The Moon’s tidal pull at the Earth’s surface is about 1.1 millionths of a meter per second squared at its strongest, roughly one ten-millionth of gravity. That is far too small to move something as small as a seed or a root. The NASA figures behind that calculation are in the Moon Fact Sheet. Gardeners who plant by the Moon do so as a custom, a way of putting a calendar on the season, not because a mechanism has been demonstrated.

The sign filter works on a different clock from the phases. The phase cycle runs 29.53 days, while one orbit against the stars takes 27.32 days. Because those two numbers do not match, the quarter and the sign line up on different dates each month, so the Traditional Days for kale move around the calendar and do not repeat on a fixed schedule.

For signs, the convention in moon-sign gardening almanacs labels Cancer, Scorpio and Pisces fruitful. It labels Taurus, Libra and Capricorn semi-fruitful. Aries, Gemini, Leo, Virgo, Sagittarius and Aquarius are labeled barren, although sources differ on Virgo, Sagittarius and Aquarius. A separate biodynamic system, built on the work of Maria Thun, calls Cancer, Scorpio and Pisces leaf days and does not use the fruitful and semi-fruitful labels at all. The table in the next section follows the first convention. For anything about when kale can actually go in the ground, the state guides are the place to look.

Traditional kale planting days, 2026 and 2027

Each row combines the first-quarter rule with a fruitful or semi-fruitful sign. All times are Eastern (ET).

The months shown are those when gardeners in much of the country plant kale. Your state may start earlier or later, so only the rows that fall inside your own state’s window count for you. A row outside it is not an option, however neatly the Moon lines up.

Reading the edges of a run

Each day in the table is read at noon ET, and the Moon changes sign during the day. A run like March 11-13 therefore has soft edges. The first and last days may include hours when the Moon is in a neighboring sign, so a gardener who wants to follow the rule closely should treat the middle of a run as the firmer part.

Two rows show a pair of signs, Libra/Scorpio, because the Moon moves from one to the other within the run. Libra is semi-fruitful in this convention and Scorpio is fruitful, so both fall inside the tradition’s list for the window. The September 30 row stands alone with the Moon in Libra.

Time zones matter for people west of the Eastern zone. A Pacific-time gardener may find that the Moon’s sign change falls on a different calendar day than the one listed. For that reason the first and last days of a run are better treated as approximate, and the middle days as the stable core.

Check your state first: when to plant kale where you live

The order of decisions matters more than any single date in the table. Start with your state’s planting calendar for kale. That calendar tells you which weeks are open, and it is built on local frost dates and soil conditions that the Moon has no say over. Only after you have those weeks in hand does the lunar tradition come into play, if you want it.

The Moon never overrides the calendar of the place. Frost dates and soil temperature decide whether kale can go in the ground. The Moon, for a gardener who follows it, only chooses among days that are already open.

The page on when to plant kale where you live covers the practical side: the planting windows, the conditions to watch and how they shift from region to region. Dates, soil temperatures and frost guidance all belong there, and this page leaves them alone on purpose. If you are not sure where your state falls, the state guides list calendars state by state, so you can find yours in a minute or two.

With your open weeks in hand, compare them to the table above. If one of the rows falls inside your window, you have a traditional day to choose. If none does, the tradition simply has nothing to offer for that stretch, and the sensible move is to follow the state calendar and skip the lunar layer. Plenty of gardeners never use it at all.

Gardeners who plant by the Moon often keep the sign as a tiebreaker only. When two days are equally open on the state calendar, they pick the one the almanac names. That is a modest use of the custom, and it keeps the weather and the soil in charge.

A fair way to try it

A home gardener who wants to know whether the custom shows anything on their own plot can test it with a simple split planting.

1. Pick a week that is open on your state’s kale calendar and contains a traditional day from the table.
2. Divide the same seed packet, or the same tray of transplants, into two equal batches, and prepare matching beds.
3. Plant one batch on the traditional day and the other on an ordinary day inside the same week, so the two plantings stay close together on the calendar.
4. Label both batches with stakes that name the date and the batch.
5. Write down the date seedlings emerge, how many come up, and the date and weight of the first harvest from each.

One season will not settle anything. Weather, pests and small differences between the two beds can easily outweigh whatever the Moon might do, and a gap of a day or two in emergence could come from any of them. Repeating the split over several seasons gives a clearer picture, but even then the result applies to your plot only.

That is the one honest way a home gardener can judge the custom. It will not prove anything about the Moon in general, but it tells you whether the practice shows up in your own notebook.

Questions about planting kale by the moon

Does the tradition say to plant kale in a waxing or a waning moon?

Waxing. The almanac rule puts leaf crops in the first quarter, from new moon to first quarter, and that stretch is part of the waxing phase. The page on planting in a waxing moon explains that phase in more detail. The waning quarters are given to root crops and to rest tasks such as weeding and composting.

What if a traditional day falls on a frost?

The almanac rule is silent about weather. It names days, not conditions, so the tradition gives no reason to plant on a day your state’s calendar has not opened. Skip that day and look at the next row in the table, or leave the Moon out of the decision for that planting. The state guide for kale owns the question of what is open.

Do I need to follow the Moon sign as well?

Not by the quarter rule alone. Some gardeners use only the phase and plant any day in the first quarter. Others add the sign as a second filter, which is what the table does. The biodynamic system based on Maria Thun’s work works from signs and calls Cancer, Scorpio and Pisces leaf days, so it would not match every row above. Either choice is a custom, and neither has been shown to change what happens in the bed.