Repotting gives your plants fresh nutrients, more room to grow, and a chance to inspect root health. Done at the right time and with the right materials, it is one of the most rewarding tasks in indoor gardening.
When to Repot
The ideal window for repotting in the Czech Republic is late February through May, just as increasing daylight triggers new growth. Repotting during active growth gives roots time to establish before the next dormant period.
Avoid repotting in November through January unless dealing with an emergency like severe root rot. The combination of short days and cool temperatures means roots recover slowly, increasing the risk of transplant shock.
Signs Your Plant Needs Repotting
- Roots growing through drainage holes or circling the inside of the pot
- Water runs straight through without being absorbed
- The plant dries out much faster than usual despite regular watering
- Top-heavy plant that tips over easily
- Stunted growth during the growing season despite adequate light and water
- Visible root mass when you gently remove the plant from its pot
Choosing the Right Pot
Go up only one size — typically 2–4 cm larger in diameter. A pot that is too large holds excess moisture around roots that have not yet grown into the space, leading to root rot.
Terracotta Pots
- Porous — allows air exchange through walls
- Dries out faster (good for succulents, bad for thirsty tropicals)
- Heavy and stable for top-heavy plants
- Available cheaply at Hornbach, OBI, and local Czech markets
Plastic Pots
- Retains moisture longer — ideal for Calathea, ferns
- Lightweight and easy to move
- Inexpensive and available everywhere
- Use a decorative cachepot for a polished look
Soil Mixes for Common Houseplants
Czech garden centres stock several good universal potting mixes. The brand Agro CS (Czech-made) offers a reliable all-purpose mix. For specific plant types, you can blend your own:
| Plant Type | Mix Recipe | Key Properties |
|---|---|---|
| Aroids (Monstera, Philodendron) | 50% potting soil, 25% perlite, 15% orchid bark, 10% charcoal | Chunky, well-draining, airy |
| Succulents & Cacti | 40% potting soil, 40% coarse sand, 20% perlite | Fast-draining, mineral-rich |
| Tropical (Calathea, Ferns) | 60% peat-free compost, 20% perlite, 20% coco coir | Moisture-retentive but not soggy |
| Orchids | 70% orchid bark, 20% sphagnum moss, 10% perlite | Very coarse, allows air to roots |
Step-by-Step Repotting Process
- Water the plant 1–2 days before repotting. Moist soil holds together better and roots are less brittle when hydrated.
- Prepare the new pot with a layer of fresh soil mix at the bottom. Cover drainage holes with a piece of mesh or a coffee filter to prevent soil from washing out.
- Remove the plant gently. Turn it upside down, supporting the stem between your fingers, and tap the bottom of the old pot. If roots are stuck, run a knife around the inside edge.
- Inspect the roots. Trim any dark, mushy, or dead roots with clean scissors. Gently loosen tightly wound roots to encourage outward growth.
- Position the plant in the new pot so the soil line sits about 1–2 cm below the rim. Fill around with fresh mix, pressing lightly to remove air pockets without compacting too hard.
- Water thoroughly and let excess drain. Place in a shaded spot for a few days before returning to its usual position.
Where to Buy Supplies in the Czech Republic
Most Czech cities have well-stocked garden centres. Hornbach and OBI carry a wide range of pots, soil, and amendments. For specialty items like orchid bark, pumice, or activated charcoal, check Zahradnictvi Hortus or order online from Zahrada-centrum.cz. During spring, even supermarkets like Lidl and Kaufland run seasonal promotions on potting supplies.