Gardening in Khartoum
Khartoum · Sahel & Sudanian Savanna · hardiness zone 12a
New here? Start with the gardening introNow
33°C · Clear
Today
42° / 30°
Soil 6 cm
38°C
First frost
Rare
Weather read at 12:29 a.m..
The garden year · Khartoum
Growing all year
No frost to beat: the rains decide when to sow, and the dry season when to water.
- Sow with the rains
- Mulch and shade seedlings
- Water through the dry season
- Watch for pests
JFMAMJJASOND
today
There is no frost here: the rains, not the cold, set the garden year. Sow as the rains arrive, and keep a watered bed through the dry season.
Plant the main crops with the next rains; mulch and shade seedlings in the heat.
Writing your field guide — reading the forecast, the moon and the map…
In the garden now · October
Who else is working the garden
The insects and soil life out near Khartoum, Sudan in October. Most of them are on your side — learn the few that aren't before you reach for anything.
PollinatorMar–OctHoney bee
Apis mellifera
Golden-brown, banded, furry thorax, and pollen packed onto the hind legs in visible baskets.
What it does in the garden →
BeneficialApr–OctLady beetle
Coccinellidae
The adult everyone knows; the larva is the useful one — a spiky, alligator-shaped grey-and-orange creature that looks like a pest.
What it does in the garden →
BeneficialApr–OctGround beetle
Carabidae
Shiny black or bronze, fast-running, with grooved wing covers and long legs.
What it does in the garden →Photo: Gavin Slater · CC BY 4.0
Soil lifeMar–Jun, Sep–NovEarthworm
Lumbricus terrestris
Familiar; look for the saddle-like clitellum a third of the way down a mature worm.
What it does in the garden →Photo: José Garrido · CC BY 4.0
PestApr–Jun, Sep–OctSlugs
Gastropoda
The silvery slime trail and ragged holes in the middle of leaves, not at the edges.
What it does in the garden →Photo: Casey H. Richart · CC BY 4.0
Photographs are research-grade observations from iNaturalist, each credited to its photographer. Ranges and timing are typical, not guaranteed — 87 species are covered across North America, Europe and Africa.
Behind this week's gardening
The day, the ground and the sky over Khartoum
Above about 32 °C tomatoes drop their flowers and lettuce turns bitter.
- Ground beetlebest now — Running the soil surface after dark, taking slugs, cutworms and larvae. One of the best predators a garden has.
- Earthwormbest now — At the surface after dark and in wet weather, pulling leaves down into the burrow.
Overhead · Khartoum, Sudan
The sky over the garden
The two clocks nothing on the ground can argue with: the length of the day, and the phase of the moon.
The sun
11h 55m of light
Sunrise
05:40
Solar noon
11:37
Sunset
17:35
A month from now the day will be 0h 24m shorter. Enough light for steady growth.
The moon
Waning Crescent
15% lit · waning · day 26 of 29.5
- Next full
- Oct 26 · 20d
- Hunter's Moon
- Next new
- Oct 10 · 4d
- Darkest nights
Planting by the moon: Last quarter to new: a resting phase — weed, prune, harvest, turn compost and prepare beds.
Anglers' solunar rating: good — the tradition says fish feed hardest in the days either side of new and full, and around moonrise and moonset. The evidence is mixed; light and weather matter more.
Turn of the season
Winter solstice
Dec 21 · 76 days away
Frost is rare here — most years see none, or a night or two at most.
Next moons
- New MoonOct 10
- First QuarterOct 18
- Full Moon · Hunter's MoonOct 26
- Last QuarterNov 1
Right now · Khartoum, Sudan
Forces at work
Nothing here is a guess. Each of these is read from this week's forecast and this location's climate record, and each one is pushing the season one way or the other.
- Quiet right now
Frost
366 frost-free days
Frost is rare here. Coldest night in the next week: 29.6 °C.
The hard edge of the growing season. Ice inside a leaf ruptures its cells — one night ends a tomato and sweetens a parsnip.
- Worth watching
Soil warmth
38.3 °C
Hot soil: germination drops off above 30 °C and roots slow. Mulch, shade the row, and sow late in the day.
Seeds read soil temperature, not the calendar. Six centimetres down is where the decision gets made.
- Quiet right now
Day length
11h 55m
Losing about under a minute of daylight a day.
The one thing weather can't change. Plants count photoperiod to decide when to bolt, bulb, flower and go dormant.
- Worth watching
Heat units
182 GDD / 7 days
A lot of heat. Growth is fast but tomatoes drop blossom above about 32 °C and lettuce turns bitter.
Growing degree days: the running total of warmth above 10 °C. Crops and insects both run on this clock rather than on dates.
- Holding things back
Rain
0.1 mm / 7 days
Only 0.1 mm over seven days. A garden wants roughly 25 mm a week — water deeply twice rather than lightly every day.
Sets the pace for everything: germination, fungal fruiting, slug nights, and how a river runs for the next three days.
- Working for you
Pollination
7 of 7 flying days
7 good flying days ahead. Open flowers will get worked — leave a shallow water dish out and hold off on any spray until dusk.
A third of what you eat needs an insect to have visited first. Bees fly on temperature and wind, not on your schedule.
Read and watch with your kids
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