The Capi Planter ball Arc Granite anthracite 34 cm combines the natural feel of stone with a low, curved shape that lets the plant take centre stage. Deep anthracite creates a clear backdrop for foliage, while the broad spherical silhouette gives a stable, grounded presence without making the space feel heavy. With a diameter of 34 cm and height of 25 cm, it works beautifully alone or alongside pots of different heights, at home, in an entrance, on a balcony or terrace. Its lightweight, durable construction brings the appearance of stone to a practical material for everyday use.
MaterialRecycled plasticlightweight and break-resistant
UseIndoors & outdoorswith the base prepared correctly
Arc Granite
The look of stone in a lighter form
The Arc Granite range draws inspiration from contemporary architecture, balancing a natural appearance with clean lines. The anthracite stone effect adds depth without strong colour contrast, while the smooth outer surface is easy to clean and keeps the pot visually understated. The result is expressive enough to stand alone, yet neutral enough to combine with different plants and materials.
The pot's identity
Low spherical silhouetteA broad curve that gives the arrangement visual stability.
Anthracite Arc GraniteA stone effect with a neutral tone that highlights greenery.
Clean surfaceEasy maintenance for everyday use indoors and outdoors.
Insulating layerAdditional protection between the roots and external conditions.
Lightweight & durableBreak resistance without the weight of stone.
UV & frost resistantSuitable for demanding outdoor use.
Recycled plasticMade with recycled materials and 100% recyclable.
For indoor useZZ plant, sansevieria, ficus or peace lily.
For outdoor useLavender, agapanthus, yucca or ornamental grasses.
Where it looks bestBeside a seating area, in an entrance, on a balcony or terrace; its low height works particularly well grouped with taller pots.
Plant suggestions are indicative. Choose a plant suited to the light, watering and available root space; plants are not included.
Discover more Capi potsDutch design, natural textures and solutions for indoors and outdoors.
The base is supplied without an open hole; for outdoor use, drill a hole at least Ø25 mm at the mark on the base
Watertightness
100% watertight while the base remains intact
Durability
UV, frost and break-resistant
Environmental features
Made with recycled materials and 100% recyclable
Warranty
Capi states a lifetime commercial warranty from the date of purchase for Arc Granite products, subject to the official Capi terms and claims procedure
Planting guide
Correct preparation for indoors and outdoors
Preparation varies with the location and growing method. In the cross-sections below, each number corresponds to a specific layer or component, showing the correct order at a glance.
Indoors · planting with substrate
Direct planting indoors
Schematic cross-section of the Capi Planter ball Arc Granite · the base remains without a drainage hole.
1
Approximately 2/3 suitable substrate around the plant.
2
Water-permeable geotextile across the entire cross-section, above the LECA.
3
Approximately 1/3 clean LECA in the lowest zone.
4
Intact, watertight base without a drainage hole.
Do not drill the base, so the pot remains watertight.
Fill approximately the bottom third with clean LECA.
Cover the LECA with water-permeable geotextile to keep it separate from the substrate.
Position the plant at the correct height and fill with suitable substrate, without excessive compaction.
Watering: as there is no water outlet, water carefully. LECA helps manage moisture, but does not make the pot self-watering or correct overwatering.
Outdoors · planting with substrate
Direct planting outdoors
Schematic cross-section of the Capi Planter ball Arc Granite · two separate filters keep drainage clear.
1
Approximately 2/3 suitable substrate around the plant.
2
Water-permeable geotextile across the entire cross-section, above the LECA.
3
Approximately 1/3 clean LECA for free water movement.
4
A small piece of water-permeable mesh only over the hole.
5
Drainage hole at least Ø25 mm at the mark on the base.
Locate the drilling mark on the base and drill a drainage hole at least 25 mm in diameter at that point.
Cover only the hole with a small piece of water-permeable mesh or geotextile to prevent blockage.
Add approximately 1/3 LECA and cover its entire surface with water-permeable geotextile.
Add suitable substrate, position the plant at the correct height and fill without excessive compaction.
For frost: keep the hole clear and the pot slightly raised, so it does not retain water that could freeze.
Indoors · LECA only
Alternative: full hydroculture
The LECA-only method differs from planting with substrate. It requires a plant already grown for hydroculture, with roots adapted to the water and oxygen conditions in LECA.
The hydroculture plant stays in its special perforated growing pot; it is not planted bare-root.
Use LECA suitable as a growing medium, not a grade intended only for filling or decoration.
Use a water-level indicator and specialist hydroculture nutrients.
The base remains without a hole, and growing-grade LECA is added around the plant's perforated pot.
Schematic cross-section of full hydroculture · the growing pot stays within the LECA.
1
Perforated growing pot The hydroculture plant stays inside it.
2
Water-level indicator For correct monitoring from OPT to MIN.
3
Growing-grade LECA Around the growing pot.
4
Shallow water zone Monitored with the water-level indicator.
Indoors · semi-hydroculture
Semi-hydroculture: the geotextile method
Here the geotextile covers the entire cross-section, separating the substrate from the shallow water and LECA zone while allowing moisture to move upwards. This is a separate planting system using substrate, rather than LECA-only cultivation.
Keep the base intact. If a hole has already been drilled, use a watertight insert.
Fit a water-level indicator or filling tube.
Create a LECA layer approximately 4–5 cm deep at the bottom.
Cover all the LECA with water-permeable geotextile and add substrate and the plant above it.
Schematic cross-section of semi-hydroculture · the geotextile separates the substrate from the shallow LECA zone.
1
Suitable substrate Around the plant.
2
Water-permeable geotextile Across the entire cross-section.
3
LECA 4–5 cm With a shallow water zone.
4
Level indicator Or filling tube.
Important for frost resistance: the pot must drain freely, without water remaining inside and freezing. Once filled, do not drag it; if it needs moving, empty it first or lift it correctly.
Cleaning & protection
Clean the outside with a soft damp cloth and mild soap if needed.
Avoid abrasive sponges, stiff brushes and strong solvents.
For outdoor use, regularly check that the drainage hole remains clear.
Durability through correct use
Outdoors, the base must drain freely, without standing water.
Do not drag the pot when full; empty it or lift it correctly.
Frost resistance depends on preventing trapped water from freezing inside.
Frequently asked questions
Can it be used indoors and outdoors?
Yes. For indoor use, the base remains intact and watertight. For outdoor use, a drainage hole at least Ø25 mm is required so water can drain freely.
Is it made of stone?
No. Arc Granite has a stone effect but is made from recycled plastic. This keeps it considerably lighter and break-resistant.
Does it always need a drainage hole?
No. Indoors, the base is left undrilled. Outdoors, drill a hole at least Ø25 mm at the mark on the base and keep it clear so water is not retained.
Which plants suit the low spherical shape?
Indoors, a ZZ plant, sansevieria, ficus or peace lily can work beautifully. Outdoors, it can be paired with lavender, agapanthus, yucca or ornamental grasses, provided the plant's needs match the light, climate and available root space.
How do I clean the Arc Granite surface?
Use a soft damp cloth and mild soap when needed. Avoid abrasive materials and strong solvents that could alter the surface appearance.
What does “lifetime warranty” mean?
It is an additional commercial warranty stated by Capi for the Arc Granite range, from the date of purchase and subject to its own terms. It does not mean unlimited replacement for all wear or misuse, and does not limit the consumer's statutory rights against the seller. For the conditions and claims procedure, see Capi's official terms and form.
