Am I eligible to join MSc Horticulture or Landscape Architecture in Germany with an agriculture background?

Yes, your agriculture degree gives you a strong, direct route into MSc Horticulture in Germany, and a workable though slightly longer route into Landscape Architecture. The difference comes down to how much design coursework each program expects you to already have.

Core admission requirements

Horticulture versus Landscape Architecture

• MSc Horticulture: your plant physiology, genetics, biochemistry, and soil science coursework covers most credit requirements directly, and many programs are admission-free if you meet the minimum credits
• MSc Landscape Architecture: expect a design gap, since these programs emphasize spatial design and drafting; some universities let you catch up through supplementary design modules in your first year
• Winter semester applications generally open in March and close around July 15, while summer semester applications open in September and close around January 15

My Advice

Apply to Horticulture programs as your primary target since your credit match is strongest there, and treat Landscape Architecture as a stretch option only at universities that explicitly offer a design catch-up track. Start building a small design portfolio using AutoCAD or GIS now if you want to keep that second door open.