• Home
  • |
  • Blog
  • |
  • Planting by the Moon, June 2026 – A Bundaberg Gardener’s Guide
Your complete lunar planting calendar for the Bundaberg winter, 
including the Super New Moon on 15 June,
the winter solstice on 21 June,
and the year's prime onion and garlic window.

June is when Bundaberg gardening shifts gears. The dry season is fully established, the air carries that particular winter clarity you only get north of the Tropic, and the morning soil is cool enough to make you reach for a long-sleeve shirt. It is also the most predictable gardening month of the year. Rain rarely interrupts your weekend, fungal pressure drops away, and the pests that tormented you in February are quietly waiting out the cold.

For lunar gardeners, June 2026 delivers two notable events. A Super New Moon falls on Monday 15 June at 12.54 pm, the second supermoon at the new moon position in two consecutive months. The full moon on Tuesday 30 June is, by contrast, a Micro Full Moon, with the moon at apogee and gravitational pull at its monthly low. Sandwiched between them is the winter solstice on Sunday 21 June, the shortest day of 2026 and a useful reset point for any gardener planning the second half of the year.

Here is everything to plant, harvest, and tend in your Bundaberg garden through June 2026.

Why Plant by the Moon

Lunar gardening is the practice of timing seed sowing, transplanting, and bed maintenance to the moon's four phases. Generations of farmers across every cultivated culture observed that the same gravitational pull driving the tides also moves moisture through soil and plant tissue, and that lunar light affects germination and early shoot growth. The waxing moon, from new to full, encourages above-ground growth. The waning moon, from full to new, draws energy and moisture down into the root zone.

Modern science is mixed on how strong these effects actually are at the scale of a backyard bed. What is not contested is the value of having a predictable schedule that gets you outside on a regular cadence. In June, when the days are short and the temptation to stay indoors with a cup of tea is real, that schedule becomes especially useful.

If you want to dig deeper into the practice, the BOGI library has further reading, and our activities and events page lists upcoming workshops where members share their own observations.

June 2026 Moon Phases for Bundaberg

All times are local Brisbane time (AEST), which applies to Bundaberg.

Last Quarter on Monday 8 June at 8.00 pm.

New Moon (Super New Moon) on Monday 15 June at 12.54 pm.

First Quarter on Monday 22 June at 7.55 am.

Full Moon (Micro Full Moon) on Tuesday 30 June at 9.56 am.

The month opens in a waning phase carrying through from the late May Blue Moon, which means the first week is naturally suited to root crops and maintenance rather than heavy planting.

1 to 7 June - Waning Toward the Last Quarter

This first week sits in the late waning gibbous phase, with energy moving downward and lunar light fading. Soil moisture is reasonable and the cool nights are ideal for crops that develop below ground.

What to plant in this window:

Garlic. June is your absolute last reliable window for garlic in Bundaberg. Plant cloves point up, 5 cm deep, 15 cm apart, in a bed enriched with compost. Australian Purple, Italian Late, and Glenlarge are the three subtropical performers worth your time. Check the BOGI shop for any remaining stock, but be quick because June supply runs out fast.

Onions. Brown onions, red onions, and salad onions can all go in now. Hunter River Brown and Gladalan Brown are reliable for our latitude. Sow direct or transplant strong seedlings.

Leeks. Welsh and King Richard handle Bundy winters well. Plant deep into a trench and earth up as they grow for blanched white stems.

Beetroot. Direct sow Detroit Dark Red or Bull's Blood. June plantings will hold quality through to spring.

Carrots. The cooler soil slows germination, so be patient. Sow Manchester Table or Topweight, water gently, and cover with hessian until the seed strikes.

Radish. Three weeks from sowing to plate, and a useful row marker for slower carrots and parsnips.

Bundy tip. Onion and leek seedlings establish faster if you trim the tops to about 10 cm at transplanting. It feels brutal but the plant redirects energy into roots, and you make up the leaf in a fortnight.

8 to 14 June - Last Quarter to New Moon, the Maintenance Week

The waning crescent is the lowest fertility window of the cycle. Use this week for everything that is not active planting. The pre-solstice timing also makes it natural to take stock of the garden as a whole and plan what you want growing through to spring.

What to do in this window:

Citrus harvest. Mandarins, lemons, limes, navel oranges, and the early valencias are all in production. Pick mandarins by hand at the stem, do not pull, and store at room temperature for sweetest flavour.

Compost turning. Heaps that cooked through autumn are now ready. Sift the finished compost onto winter beds, and start a new heap with the trimmings.

Pruning. Cut back overgrown perennial herbs (rosemary, sage, oregano, thyme) by a third. Prune passionfruit if you missed the May window. Avoid major pruning of subtropical fruits like avocado, mango, and lychee until late winter.

Bed preparation. Fork over fallow beds, work in aged manure, and let the worms do their thing for a couple of weeks before the new moon planting wave.

Seed organisation. Inventory your seed packets, check viability dates, and order anything you will need for the spring rush. June is the cheapest month for seed because demand has dropped.

Bundy tip. The cool dry days of mid-June are perfect for making and applying liquid compost teas. Brew a sock of mature compost in a bucket of water for 24 to 48 hours, then water it onto your brassicas at half strength. The microbial boost shows up within a week.

15 to 21 June - New Moon to First Quarter, the Leafy Window

The Super New Moon on 15 June carries the strongest lunar pull of any new moon in 2026, equal only to the May Super New Moon a month earlier. As the moon waxes through the dark phase into the first quarter, energy rises through plants and lunar light returns. This is the gardener's prime window for leafy greens, brassicas, and any crop that produces above ground.

What to plant in this window:

Brassicas, every variety. Broccoli, cauliflower, cabbage, kale, kohlrabi, brussels sprouts, collards, mustard greens, pak choy, bok choy, tatsoi, mizuna, and rocket. June plantings will mature through the cool months when these crops are at their absolute best.

Lettuce. Cos, butterhead, oak leaf, and looseleaf mixes. The cool soil slows growth, so plant a row every fortnight to keep continuous supply.

Silverbeet and spinach. Both bolt in summer and crop heavily through winter. Bright Lights chard adds colour to a winter plate.

Asian greens beyond brassicas. Coriander, parsley, dill, chervil, and chives are all in their prime sowing window.

Strawberry runners. Last reliable planting window. Get them in by 21 June for fruit through spring.

Sweet peas, stocks, calendula, pansies, violas, and snapdragons. Winter colour earns its keep.

Bundy tip. The week of the Super New Moon coincides with the shortest days of the year, so even fast growing leafy crops will sulk for the first ten days. Resist the urge to over-fertilise. A weekly seaweed drench at half strength is enough. Heavy nitrogen at this stage produces soft, sappy growth that aphids will find within a week.

22 to 29 June - First Quarter to Full Moon, the Fruiting Window

The waxing moon between the first quarter and the full moon is the traditional window for crops that bear fruit, pods, or seed. June fruiting plantings are conservative because cool soil slows nodulation in legumes and stalls germination of most warm-season crops, but peas and broad beans love this energy.

What to plant in this window:

Garden peas. Massey, Greenfeast, and Telephone if you missed May. Trellis early, mulch heavily.

Snow peas and sugar snap peas. Oregon Sugarpod and Sugar Snap. Pick young and often.

Broad beans. Coles Dwarf or Aquadulce. Direct sow only.

Asparagus crowns. June is the textbook planting month for asparagus in Bundaberg. Plant crowns 30 cm apart in a deep, compost-enriched trench and resist harvesting for two seasons.

Globe artichokes. Plant offsets now for harvest in spring. Choose a permanent corner because they are perennial.

Flowering annuals. Continue with stocks, calendula, alyssum, and sweet peas.

Bundy tip. June peas are vulnerable to powdery mildew if there is any irrigation overhead. Water at the base, mulch heavily, and grow up an open trellis with airflow on both sides. A weekly spray of milk diluted one part in nine with water, applied early morning, is an old organic preventative that works well in our climate.

Full Moon, Tuesday 30 June - The Micro Full Moon

The month closes at apogee, with the moon at its furthest point from earth in this lunation. The full moon's gravitational pull is therefore at its monthly low. From a planting perspective, treat 30 June the same as any other full moon. Avoid major above-ground sowing, harvest crops you intend to store, and use the day to walk the garden and assess what is working.

This is also a good day for a practical solstice ritual if you are inclined. Note where the sun rises and sets, mark the shadow lines on your beds, and use that data to plan summer plantings of crops that need either more sun or more shelter.

Working With Bundaberg's June Climate

June delivers Bundaberg's coolest and most predictable weather of the year.

Daytime maximums average 22°C across the month, holding steady from beginning to end.

Overnight minimums average 10 to 12°C in town and as low as 7 to 9°C out toward Childers, Gin Gin, and Sharon.

Rainfall averages around 50 mm for the month, mostly delivered in light coastal showers rather than the heavy summer downpours.

Humidity drops to around 55 per cent, the lowest of the year.

Daylight is at its shortest. The winter solstice on 21 June delivers just 10 hours 27 minutes of daylight, with the sun rising at 6.36 am and setting at 5.03 pm.

Frost in central Bundaberg is rare but possible in clear, still conditions. Properties on the elevated ranges around Childers can record several light frosts through the month. If you garden at altitude, drape frost cloth over tender seedlings overnight when the forecast minimum drops below 4°C.

Soil temperature in raised beds drops to around 16°C through the month and as low as 13°C in shaded ground. This is below the germination threshold for beans, corn, cucurbits, and most warm-season crops. If your seed packet specifies soil temp 18°C or higher, wait until August.

What to Harvest in June

June is Bundaberg's citrus month and the start of brassica returns from May plantings.

Mandarins (Imperial, Hickson, Murcott), navel oranges, valencia oranges, lemons, limes, grapefruit, cumquats, pomelo, broccoli (early), pak choy, bok choy, lettuce, silverbeet, spinach, herbs, late sweet potato, carrots and beetroot from May plantings, persimmons (last), pumpkins still in storage, ginger, turmeric, and the last of the autumn chillies.

Mandarin trees in full flush can produce more fruit than any household can eat. Drop a box at your neighbour's, donate to a local foodbank, or juice and freeze for winter. The flavour at full ripeness justifies the effort.

A Note on Lunar Gardening

The honest version of lunar gardening is this. The schedule is older than recorded agriculture and has guided successful growers across every continent for centuries. The mechanism, gravitational pull moving water and lunar light influencing germination, has some scientific support but the magnitude of the effect is small compared with soil quality, variety choice, and weather.

The real value of planting by the moon is what it does to your behaviour as a gardener. It pulls you outside on a regular cadence, gives you a reason to put your hand in the soil at moments you might otherwise skip, and creates a rhythm that aligns your week with the cycles your crops are already responding to. June, with its short days and cold mornings, is when that rhythm matters most.

Quick Reference, June 2026

1 to 7 June (waning gibbous to last quarter). Plant garlic, onions, leeks, and root crops. Cool soil suits all of them.

8 to 14 June (last quarter to new moon). Maintenance week. Citrus harvest, compost turning, pruning, and seed inventory.

15 to 21 June (Super New Moon to first quarter). Plant brassicas, leafy greens, herbs, and strawberries. Best leafy window of winter.

22 to 29 June (first quarter to full moon). Plant peas, broad beans, asparagus crowns, and broad bean. Fruiting window.

30 June (Micro Full Moon). Harvest, observe, plan.

Looking Ahead to July

July brings Bundaberg's coldest mornings and the year's prime potato planting window. The new moon falls on Tuesday 14 July and the full moon on Thursday 30 July. It is also the last reliable month for many winter crops before the soil starts warming for spring plantings in August.

Start preparing potato beds now by working in compost and aged manure. If you want to plant heritage potato varieties, order your certified seed potatoes by mid-June because stocks run out fast. Our July planting guide will be live by 1 July.

Frequently Asked Questions

Is June too late to plant garlic in Bundaberg?

The first half of June is your final reliable window. Garlic needs a cool period to form bulbs properly, and a late June planting risks producing single round bulbs rather than fully segmented heads. If you missed the planting window, store the cloves in a paper bag and try again in May next year. 

What vegetables grow best in Bundaberg in winter?

The brassica family leads the winter list. Broccoli, cauliflower, cabbage, kale, and Asian greens all crop heavily in our cool dry winter. Peas and broad beans run a close second, followed by leafy greens like lettuce, silverbeet, and spinach, and the alliums (onions, leeks, garlic, shallots).

Does Bundaberg get frost in June?

Central Bundaberg rarely records a frost. Properties on the elevated country around Childers, Gin Gin, and the Mount Perry road can record several light frosts each winter. Tender seedlings should be covered overnight when the forecast minimum drops below 4°C in those locations.

When is the winter solstice in Bundaberg in 2026?

The winter solstice falls on Sunday 21 June 2026. Sunrise in Bundaberg is at 6.36 am, sunset at 5.03 pm, giving 10 hours 27 minutes of daylight, the shortest day of the year.

Where do you source the moon phase data?

All times are local Brisbane time (AEST), sourced from timeanddate.com, which is the closest reference city for Bundaberg.

Bundaberg Organic Gardeners Inc has been growing organic food in the Wide Bay since 1991. If you found this guide useful, join us to get monthly meetings, members-only resources, and access to our seed bank, and browse our shop for seasonal seeds, mulch, and member resources. Our next workshop and field day dates are on the activities and events page.

Moon phase data sourced from timeanddate.com for Brisbane, Queensland (the nearest reference city to Bundaberg).

Leave a Reply

{"email":"Email address invalid","url":"Website address invalid","required":"Required field missing"}