Heritage (heirloom)

A heritage variety — often called an heirloom — is simply an older, established type of vegetable, fruit or flower that has been grown and handed down over many generations. There's no single cut-off date, but most are varieties that existed well before the modern seed industry, typically passed between gardeners, families or allotment communities long enough to earn a name and a reputation.

The defining feature is that heritage varieties are open-pollinated. That means they're pollinated naturally — by wind, insects or self-pollination — rather than crossed by hand each year. As long as you keep them away from close relatives that could cross with them, the seed you save comes true to type: sow it and you get plants almost identical to the parent. This is the big practical contrast with an F1 hybrid, whose saved seed scatters into an unpredictable mix and so has to be bought fresh every season.

The flavour-versus-uniformity trade-off

Heritage varieties are usually grown for flavour, history or character rather than commercial neatness. Modern F1s are bred to crop all at once, travel well and look uniform on a supermarket shelf — qualities that matter to growers selling at scale but not much to someone picking dinner from the back garden. Older varieties were instead selected, season after season, for how they tasted.

The trade-off is variability. A row of heritage carrots or tomatoes won't be as identical in size, shape or ripening time as an F1 row, and some older types carry less built-in disease resistance — worth bearing in mind in the UK's mild, damp summers where blight and mildew thrive. You're swapping a little predictability for flavour, diversity and a story.

Why they're worth growing

For a UK beginner, heritage varieties offer a few real rewards:

• Taste — many are noticeably better eating than their F1 equivalents, which is hard to find in the shops.
• Self-sufficiency — because the seed comes true, you can save your own each year and stop buying packets.
• Variety — purple carrots, stripy tomatoes, climbing beans in odd colours — things you simply can't buy.
• Preservation — growing them keeps old varieties, and the genetic diversity they hold, from disappearing.

There's no need to choose one camp. Plenty of gardeners grow a couple of dependable F1s to guarantee a harvest alongside a heritage variety or two for flavour and fun. If you'd like to take the next step and grow more self-sufficiently, the natural follow-on is learning to save your own seed from the heritage plants that did best for you.