Most greenhouses on the market still borrow their looks from the Victorian era — pitched roofs, ornate cresting, classic proportions. There's nothing wrong with that, and we love a good Royal Victorian greenhouse. But not every backyard, and not every homeowner, wants a nod to the 1800s. Some want clean lines, a low profile, and a structure that looks like it belongs next to a modern home. That's exactly the gap the Hoklartherm Linea II fills.
Fresh from Germany and newly available through Mulberry Greenhouses, the Linea II represents a genuinely different take on the backyard greenhouse. In this review, we'll break down its construction, glazing options, real-world use cases, and who it's actually built for — so you can decide whether this modern greenhouse design deserves a spot in your garden.
First Impressions and Build Quality
The Linea II is built by Hoklartherm in Apen, Germany — a manufacturer that has been engineering aluminum greenhouses since the early 1980s and is the same company behind the legendary Riga Greenhouse line. That pedigree shows. The frame is powder-coated aluminum in a deep anthracite grey, with the tight tolerances and torsion-resistant construction that German greenhouse makers are known for.
The defining visual feature is the low-pitch mono-slope roof — a single clean plane rather than a traditional peak. Combined with the anthracite finish and a wide lockable split Dutch door, the result is a structure that reads as contemporary and intentional, not utilitarian. It's the kind of greenhouse that looks like part of the home's architecture rather than a shed parked in the yard.
Glazing Options: Polycarbonate or Glass
One of the Linea II's smartest features is that it doesn't force a single glazing choice on you. It's offered in two versions. The 10mm twin-wall polycarbonate option delivers better insulation and soft, diffused light that spreads evenly across plants and reduces hot spots — ideal for growers focused on healthy, consistent growth. The 4mm tempered glass option gives you crystal-clear visibility and that classic, upscale conservatory look.
This flexibility means the same structure can serve very different priorities. A serious grower in a hot climate might choose polycarbonate for its light diffusion and thermal help, while a homeowner who wants a beautiful glass garden room might pick tempered glass. Being able to match the glazing to your goal — rather than accept a compromise — is a genuine advantage.
Ventilation and Daily Functionality
A greenhouse lives or dies on airflow, and the Linea II handles it thoughtfully. Upper vent windows work together with a rear window to create cross-ventilation, letting hot air escape near the roofline while drawing cooler air through. The wide lockable split Dutch door adds another layer of control — open the top half for airflow while keeping the bottom closed, or open it fully for easy access with a wheelbarrow or trays.
The split door design also nods to the structure's versatility. Because it's lockable and secure, the Linea II works not just as a greenhouse but as protected outdoor storage — a place for bikes, garden tools, or pool equipment during the off-season. That dual-purpose flexibility is rare in this category and adds real practical value.
Who the Linea II Is Built For
The Linea II is aimed squarely at a specific buyer: the urban or suburban gardener with a compact yard who wants a structure that performs like a serious greenhouse but looks like a piece of modern design. Its smaller footprint fits tighter spaces where a full Victorian would overwhelm the yard, and its contemporary profile complements modern and mid-century homes beautifully.
It's also a strong pick for the gardener who wants versatility — someone who'll use it for seed starting and herb growing in season, then as secure storage in winter. If you want maximum growing volume above all else, a larger Victorian Greenhouse or a winter-focused Riga may serve you better. But for style-conscious gardeners who value design, flexibility, and German build quality in a manageable size, the Linea II is hard to beat.
The Verdict
The Hoklartherm Linea II earns its place in the Mulberry catalog. It brings genuine German engineering, a genuinely modern aesthetic, and unusual flexibility — two glazing options, dual-purpose functionality, and a footprint that suits real backyards. It won't replace a large glasshouse for a commercial-scale grower, and it isn't trying to. What it does, it does exceptionally well: deliver a stylish, durable, functional greenhouse for the modern gardener.
Because it's a newly imported model, the Linea II is currently available by special order, with pre-order pricing available for a limited time. For buyers who want something different from the traditional greenhouse — and want it built to last — it's well worth considering.
Find Your Perfect Greenhouse at Mulberry Greenhouses
At Mulberry Greenhouses, we'd love to help you explore the Linea II and decide whether this modern greenhouse design fits your space and your style. We can walk you through the polycarbonate versus glass decision, sizing, ventilation, and pre-order timing so you order with confidence. If you'd like something more tailored to your yard, ask us about our custom greenhouses — we adapt sizing, finishes, and configurations to your specifications. And check today's deals before ordering — our promotions change monthly, and the right timing can save you significantly. We offer free curbside delivery to the contiguous US, military discounts, and a price match guarantee on every order. Contact us today to learn more.