The planting season in Saudi Arabia runs backwards from what most gardening advice assumes. Spring is when things start to struggle here. The real window opens as the summer heat breaks in late September, and October is the best month of the year to put anything in the ground.

This guide sets out what to plant and when, from September through to January, and how the timing shifts between Riyadh, Jeddah and the Eastern Province.

When Is the Best Time to Plant in Saudi Arabia?

October is the best month to plant in most of the Kingdom. The soil is still warm enough to push root growth, the air has cooled enough that new plants are not losing water faster than they can take it up, and there are several mild months ahead before the next summer tests them.

The window runs from late September to about the end of November for trees and shrubs, with seasonal colour and vegetables continuing through the winter. Planting in April or May gives roots only a few weeks to establish before June, which is why so much spring planting fails here.

What Should You Plant in September?

September is preparation month rather than planting month. In most of the Kingdom the first half is still too hot for anything to establish well, so the work is soil, irrigation and clearing.

• Clear out summer losses and cut back anything that has gone leggy.
• Service the irrigation system, zone by zone, before new planting depends on it.
• Dig compost through the beds so it has a few weeks to settle.
• On the coast, start planting hardy shrubs in the last week if nights have cooled.

What Should You Plant in October?

October is the month to plant everything structural. Anything that needs to grow a root system before next summer should go in now.

• Trees and palms. The single best month of the year for them. Date palms, washingtonia, ficus and olive all establish well in October.
• Shrubs and hedging. Myrtle, oleander, bougainvillea and jasmine all take now and will be knitted together by spring.
• New lawn. Turf and seed both work while the soil is still warm. This is the last comfortable month for laying grass.
• Vegetables. Tomatoes, peppers, cucumbers, beans and leafy greens can go in from mid October.

If you are planning larger structural planting, our luxury landscaping guide explains why the canopy layer goes in first and everything else follows.

What Should You Plant in November?

November is still a good planting month, and it is the best month for colour. Anything planted now has the whole winter to settle.

• Seasonal colour. Petunia, marigold, snapdragon, dianthus and pansy will carry a garden from December through to March.
• Herbs. Coriander, parsley, mint and rocket all do well from a November sowing.
• Late trees and shrubs. Still fine, though growth will be slower than an October planting.
• Bulbs. Anything that needs a cool period should go in now.

When Should You Lay a New Lawn or Sow Grass Seed?

Between the start of October and the middle of November. Turf needs warm soil to knit down and mild air so it is not losing water while it does. Laying grass in the middle of summer means watering constantly to keep it alive, and laying it in deep winter means it sits there doing nothing.

If you have already given up on grass in a difficult spot, our guide to artificial grass in the Saudi climate covers where it genuinely makes sense and where it causes more problems than it solves.

How Do You Prepare a Garden for the Autumn Planting Season?

• Step 1: Clear out what the summer killed. Pull anything that did not survive and be honest about it. A plant that struggled through two summers will not improve in a third. Note where the losses cluster, because that usually points at an irrigation problem rather than a plant problem.
• Step 2: Check the irrigation before you plant. Run every zone and walk the garden while it runs. Look for blocked emitters, leaks at the fittings and dry patches. It is far easier to fix a line now than after new planting is in the ground.
• Step 3: Improve the soil. Most Saudi garden soil is sandy, alkaline and low in organic matter. Dig in compost or well rotted manure across the beds, not just in the planting holes, so roots have a reason to spread outward.
• Step 4: Wait for the night temperature to drop. New roots stop growing when the soil stays hot around the clock. Wait until night temperatures settle below about 30 degrees before planting anything substantial, which is usually late September in Jeddah and early October inland.
• Step 5: Plant, water in heavily, then taper. Soak new planting properly at the time it goes in, then water deeply and less often rather than a little every day. Deep, infrequent watering is what drives roots down where the soil stays cooler.

Does the Calendar Change Between Riyadh, Jeddah and the Eastern Province?

Yes, by roughly two weeks, and the reason differs by region.

• Jeddah and the western coast. Cools earliest, so planting can start in the last week of September. Humidity is the constraint here rather than heat, so airflow around new planting matters more.
• Riyadh and the interior. Runs about two weeks behind the coast. Early October is realistic. Nights get genuinely cold in January, so tender seasonal colour needs a sheltered position.
• Dammam, Khobar and the Eastern Province. Similar timing to Riyadh, with the added problem of salt in the soil and groundwater. Raised beds with imported soil are often the practical answer.

Our complete guide to landscaping in Riyadh covers the inland conditions in more detail.

What About Water Through the Season?

Autumn is when most gardens here waste the most water, because controllers are left on their summer schedule well into November. Reducing run times as the temperature drops is the single easiest saving available, and a smart controller does it without anyone remembering to.

The wider point is that planting choices decide the water bill far more than watering habits do. Our sustainable landscaping guide covers native and adapted species, and the plant guide has the species list for Saudi conditions.

Frequently Asked Questions

What is the best month to plant in Saudi Arabia?

October. The soil is still warm enough to drive root growth while the air has cooled enough that new plants are not losing water faster than they can take it up, and several mild months follow before the next summer.

Can you plant in Saudi Arabia during summer?

It is possible but rarely worth it. Plants put in during June, July or August spend all their energy surviving rather than rooting, need constant watering, and often fail anyway. Waiting until late September gives a far better result for less work.

When should you lay a new lawn in Saudi Arabia?

Between the start of October and the middle of November. The soil is still warm enough for turf to knit down and the air is mild enough that the new grass is not under water stress while it establishes.

Does the planting calendar differ between Riyadh and Jeddah?

By about two weeks. Jeddah and the western coast cool earlier, so planting can begin in late September. Riyadh and the interior stay hot longer, so early October is more realistic.

Plan Your Autumn Planting With AALICO

AALICO has been planting gardens across Saudi Arabia since 1980, so we have a fairly good idea of what survives here and what only looks good in a nursery. If you want the season used properly, get in touch before the window closes. Our services page covers design, planting and maintenance, and the pool landscaping guide covers the planting rules around water.