What can you really grow in a premium aluminium greenhouse? A monthly growing calendar for Malta

Many gardeners in Malta ask the same question: What can you grow in a greenhouse — and is a high-quality greenhouse truly worthwhile? Malta’s sunny, dry summers, mild winters, strong winds and occasional cool spells all place particular demands on plants. An aluminium greenhouse creates more controlled conditions and supports a longer, steadier growing season.

This practical guide is a greenhouse growing calendar for Malta. It outlines suitable plants and their needs throughout the year. It is not simply a planting list: soil preparation, nutrients, watering, light and ventilation all matter for successful year-round greenhouse growing.

We also explain what makes a premium greenhouse stand out, what to consider when choosing the best greenhouse for home gardeners and how to weigh up glass greenhouse vs polycarbonate in Malta’s climate. You will also see why a Bloomcabin greenhouse can suit long-term, high-quality gardening.

Why an aluminium greenhouse suits Malta

Malta’s climate brings intense sunshine, dry spells, humidity near the coast and changing temperatures in winter. A premium aluminium greenhouse is well suited to these conditions because aluminium does not rust or rot and remains dimensionally stable in damp air. This makes it more durable than many basic structures.

For winter greenhouse growing , light is rarely the only consideration; ventilation and temperature control are equally important. This is where glass greenhouse vs polycarbonate becomes relevant. Glass offers high light transmission, helping leafy crops make the most of winter daylight.

A Bloomcabin greenhouse is designed to use these strengths: robust aluminium profiles, quality glass, effective ventilation and thoughtful design for lasting garden use.

How to use this greenhouse growing calendar

Successful greenhouse growing is not about forcing every plant at every time of year. Choose crops for the season and manage greenhouse conditions carefully. This greenhouse growing calendar helps you make suitable choices month by month.

In Malta, consistent watering, regular ventilation to reduce humidity and heat, plus loose, nutrient-rich soil are especially important. Once these basics are right, the question what can you grow in a greenhouse has a season-dependent answer: protected growing broadens your options.

January: winter vegetables and microgreens

January highlights the shelter a greenhouse provides from wind, rain and temperature swings. Leafy crops can remain productive under cover through Malta’s cooler months, supporting dependable winter greenhouse growing.

Suitable plants: lamb’s lettuce, winter lettuce, spinach, rocket, young kale, parsley, chives and microgreens such as pea shoots or radish.

Soil and water: Keep soil loose, humus-rich and free-draining. Waterlogging is a common winter mistake. Water sparingly, preferably in the morning.

Light and ventilation: Keep glazing clean and air the greenhouse briefly on mild days to reduce condensation.

February: sowing and season preparation

February is useful for raising sturdy young plants under cover, with regular ventilation to prevent warm, humid conditions from building up.

Sowing: tomatoes, peppers, chillies, aubergines, basil, leeks, onions and celery.

Growing medium: Use a fine, open seed compost. Feed only after the first true leaves appear.

Temperature: Most seeds germinate at 18–22 °C. Protect them with fleece on cooler nights if needed.

March: growth gathers pace

As daylight increases, plants grow much faster. This is a good time for pricking out and potting on.

Plants: lettuces, herbs, early brassicas, raised tomatoes and peppers.

Ventilation: Regular airing is essential to help prevent fungal diseases.

April: first harvests and summer-crop preparation

April begins a productive period. Fast crops can already yield harvests while heat-loving plants take their places.

Plants: lettuces, radishes, spinach, carrots, potted strawberries, tomatoes and peppers in final positions.

Nutrients: Feed moderately now and consider calcium for later fruit development.

May: flowering and fruit set

May is important for later yields. Most fruiting vegetables begin to flower, and heat management becomes increasingly necessary.

Plants: tomatoes, cucumbers, peppers, herbs and, in larger greenhouses, melons.

Feeding: Potassium-rich feed supports fruit formation.

June and July: harvesting and heat management

Harvest regularly now. Excellent ventilation and shading are vital for controlling heat and high humidity.

Harvest: tomatoes, cucumbers, peppers, herbs and lettuces.

Care: Pinch out, tie in, water early.

August: preparing for autumn and winter

Prepare for autumn in August, sowing only as temperatures ease; if heat persists, wait until September.

Sowing: Asian salads, rocket and spring onions; delay spinach and lamb’s lettuce until cooler conditions.

September and October: extending the season

As summer heat eases, outdoor beds revive while the greenhouse remains useful for protecting and managing autumn crops.

Plants: autumn salads, spinach, herbs and Swiss chard.

Care: Water less, and pay closer attention to light and ventilation.

November and December: reliable cool-season growing

Shorter days slow growth, but harvests remain possible in Malta’s mild conditions. Microgreens become especially useful at this time of year.

Plants: lamb’s lettuce, spinach, winter lettuce and microgreens.

Glass greenhouse vs polycarbonate: which is better?

The choice between glass greenhouse vs polycarbonate matters in Malta. Glass offers high light transmission and durability; polycarbonate often insulates better, while its light transmission varies by product.

For winter greenhouse growing and an elegant garden setting, glass can be a strong option in the premium range, provided summer ventilation and shading are planned.

Which is the best greenhouse for home gardeners?

The best greenhouse for home gardeners is durable, well ventilated, easy to maintain and made for many years of use.

A Bloomcabin greenhouse brings together quality materials, elegant design and practical details for successful year-round greenhouse growing.

Conclusion: a greenhouse is a year-round garden

With a quality aluminium greenhouse and a considered greenhouse growing calendar gardening becomes more predictable and rewarding. Instead of one short season, enjoy fresh vegetables for much of the year.

A Bloomcabin greenhouse offers the quality, stability and design for lasting gardening pleasure.