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Containers dry faster than garden beds. Water-retaining materials can even out moisture between waterings when they are used in the right dose.
Core guide
Hydrogel absorbs water and releases it gradually. Mix it in dry before planting and follow the dosage on the pack; overdosing can make the mix too wet.
Vermiculite holds water and nutrients while staying loose. It suits seed starting and plants that like even moisture.
A surface mulch and some shade for the containers reduce evaporation on hot days.
Terrace gardening
Choose a stable container with drainage holes and space for mature roots. Use container growing mix rather than dense garden soil. Check the plant label for light requirements.
Read articleGarden care
Check soil and plants before watering. Water the root zone as needed instead of giving every plant the same amount on a calendar. New plantings may need different care from established plants.
Read articleNo. Plants that prefer dry conditions, such as succulents, usually do not benefit. Check plant needs first.
It works best mixed through the mix at planting or repotting, not sprinkled on the surface.
Vermiculite retains water; perlite mainly adds air. Many mixes use both.
Optional materials that support the steps above. Choose what your plants actually need.
Water retention
A measured water reserve for planters and hanging baskets.
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Expert pickSeed sowing & moisture
Balances moisture and nutrients for seedlings and herbs.
Fraction: 1–5 mm
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The growing note
