Best Plants & Seeds — Containers and greenhouses (2026)
1 plants & seeds matching best for “Containers and greenhouses”, hand-picked from UK Amazon listings.
Not sure which one to pick? Read our Best Plants & Seeds UK (2026) guide.
#1 Pick
Suttons Chilli Pepper F1 Apache Seeds, Approx. 8 Seeds per Pack- Containers and greenhouses
£4.99
Pros
- Compact plants ideal for containers and greenhouses
- Heavy-cropping compact chilli variety
- Grow-your-own instructions on pack
Cons
- Small seed count per packet
Explore a diverse selection of plants and seeds perfectly suited for growing within containers and greenhouses across the UK. This curated collection focuses on varieties thriving in controlled environments, ideal for extending your gardening season or creating miniature indoor jungles. We’ve gathered robust options that can handle varying light conditions found within greenhouse structures and pots – from sun-loving herbs to shade-tolerant leafy greens.
Many of these plants are specifically chosen for their suitability in container growing, considering factors like root space requirements and drainage needs. You'll find a range of seeds offering fast germination and robust seedlings ready for transplanting into your chosen containers or greenhouse beds. Investing time selecting the right varieties will maximise your yield and enjoyment within this dedicated collection.
FAQ
What size containers are best for these plants?
Generally, larger containers (at least 18 litres) offer more room for root development and stability, particularly for greenhouse-grown vegetables. Smaller pots – 5-10 litres – work well for herbs and bedding plants suited to container life.
Do I need a heated propagator for seeds?
Many seed varieties benefit from a heated propagator to accelerate germination, especially in cooler months or within greenhouses. A temperature increase of just a few degrees can significantly improve success rates – check the seed packet for specific recommendations.
How much sunlight do these plants need?
The light requirements vary greatly depending on the plant type; herbs like basil and rosemary require 6-8 hours of direct sun, while leafy greens prefer partial shade. Always research the individual plant’s needs before planting to ensure optimal growth.
What soil mix should I use in my containers?
A good quality peat-free potting mix is essential for providing drainage and nutrients. Consider adding perlite or vermiculite to improve aeration, particularly within a greenhouse environment where humidity can be higher.
Can I move plants between containers and greenhouses?
Yes, you can, but it's best to acclimatize plants gradually to avoid shocking them. Start by placing them in a shaded area before moving them into full sunlight or the greenhouse.
Are there any specific fertilizers I should use?
Regular feeding is crucial for healthy growth, especially in containers where nutrients are leached out with watering. Use a balanced liquid fertilizer diluted to half strength initially, then adjust based on plant needs.
How do I prevent pests and diseases in my greenhouse plants?
Maintaining good ventilation and regular inspection of plants is key to preventing problems. Introduce beneficial insects or use organic pest control methods if necessary, following product instructions carefully.
What's the best way to water container plants?
Water deeply when the top inch of soil feels dry to the touch. Avoid overhead watering to minimise fungal disease risk, and consider using a watering can with a rose attachment.
Can I grow vegetables in containers within my greenhouse?
Absolutely! Many popular vegetables – tomatoes, peppers, cucumbers, and salad leaves – thrive in containers within a well-managed greenhouse environment. Provide adequate support structures as needed.
What’s the difference between seeds and seedlings for this collection?
Seeds offer greater variety and cost-effectiveness but require more patience and careful germination. Seedlings provide a head start, accelerating growth but may have limited cultivar choices available.