At a glance
Dahlia Compost
Ready-to-use growing medium for beds & containers · 10 litres
- Use
- Dahlias
For beds and containers.
- Contents
- 10 litres
- Application
- Ready to use
- Initial nutrition
- Pre-fertilised
For dahlias in beds and containers; pre-fertilised and ready to use.
Repot with ease
A fresh start for the flowering season: this dahlia compost is ready to use and pre-fertilised. Suitable for dahlias in beds and containers, from planting tubers to moving rooted plants.
- Plan the site and container
Choose a draining container suited to the cultivar, or prepare a sunny, well-drained position in the bed.
- Fill and firm gently
Fill the gaps and firm gently. Leave watering space beneath the pot rim.
- Support continuing growth
Tie new shoots loosely when needed. Feed after 4–6 weeks during growth; keep started plants protected while frost remains possible.
After 4–6 weeks, feed actively growing plants with a suitable fertiliser. Do not add extra starter fertiliser when planting.
View the complete repotting guideProduct information
ApplicationReady for potting
A fresh start for the flowering season: this dahlia compost is ready to use and pre-fertilised. Suitable for dahlias in beds and containers, from planting tubers to moving rooted plants.
After 4–6 weeks, feed actively growing plants with a suitable fertiliser. Do not add extra starter fertiliser when planting.
PropertiesProduct characteristics and guidance
High-moor peat (H3–H8), plant materials from gardening and landscaping (green-waste compost), sand, calcium carbonate and calcium ammonium nitrate.
Declared growing-medium valuesThis product’s declaration
Contains boron, copper and zinc in horticulturally relevant amounts. Nutrient values apply when placed on the market, may vary naturally and may require checking before use after storage.
- Organic matter: 25% fresh mass.
- pH (CaCl₂): 5.8.
- Salt content (KCl): 1.5 g/l.
- Nitrogen: 200 mg/l (CaCl₂).
- Phosphate (P₂O₅): 350 mg/l (CAL).
- Potassium oxide (K₂O): 820 mg/l (CAL).
- Magnesium (Mg): 120 mg/l (CaCl₂).
- Sulphur (S): 100 mg/l (CaCl₂).
Root space & plant care
Dahlia Compost in everyday use
Which plant is it for?
Flowers through the summer
Sun, early supports for tall cultivars and responsive watering complement suitable root space.
Details & background
A fresh start for the flowering season: this dahlia compost is ready to use and pre-fertilised. Suitable for dahlias in beds and containers, from planting tubers to moving rooted plants.
Composition & nutrition
Give dahlias their growing space
Ready-to-use compost for tubers and rooted dahlias in beds or pots. Match container size to the cultivar.
Details & background
See the product information for the full composition and nutrient declaration. Account for the existing nutrient supply before adding further fertiliser.
Repotting in eight steps
A closer look at the mix
Peat, green-waste compost and sand form part of this recipe. Loosen before filling and firm gently around the plant.
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Plan the site and container
Choose a draining container suited to the cultivar, or prepare a sunny, well-drained position in the bed.
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Check planting material
Use firm, healthy tubers or well-rooted plants. Handle tuber necks and young shoots gently.
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Place supports early
For tall cultivars, insert a support before or during planting to avoid damaging tubers later.
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Loosen the compost
Loosen the ready-to-use mix. Add a base layer in the pot or prepare the planting hole in the bed.
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Position the dahlia
Set tubers with shoots facing up and position the crown just below the compost surface. Keep rooted potted plants at their previous planting level.
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Fill and firm gently
Fill the gaps and firm gently. Leave watering space beneath the pot rim.
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Water responsively
Avoid keeping tubers continuously wet before strong growth starts. Water rooted plants in and allow excess to drain.
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Support continuing growth
Tie new shoots loosely when needed. Feed after 4–6 weeks during growth; keep started plants protected while frost remains possible.
Ongoing plant care
Dahlias enjoy sun. Support tall cultivars early, water as needed and remove faded flowers. Overwinter tubers frost-free according to local conditions.
Frequently asked questions
Can I plant tubers and potted plants?
Yes. Cover the crown of tubers; keep rooted potted plants at their previous planting level.
Is it peat-free?
No. It contains high-moor peat, green-waste compost and sand.
When should I start feeding?
The compost is pre-fertilised. Supplementary feeding can begin after 4–6 weeks during active growth.
Is 10 litres enough for a container?
It depends on container size and existing root volume. One bag contains 10 litres; larger pots need more.
Safety and storage
Safety instructions
Wash your face and hands thoroughly. Use diluted fertiliser promptly and keep it out of water bodies and wastewater.
Product GPSR safety information
A safety PDF is not currently available for this product. Please refer to the product information below and the label.
Storage
Store under cover
Store sheltered from the weather and in the dark. Protect from drying out, excessive wetness and direct sunlight. Seal opened bags tightly and use promptly.