# Annuals and biennials

> Every article on annuals and biennials native to the Netherlands at tuinontwerp.app: position, planting, pruning, diseases, and the insects and birds each species supports.

Canonical: https://tuinontwerp.app/en/blog/category/plants/een-en-tweejarigen
Last updated: 2026-09-28

The wild flowers that seed themselves: poppy, cornflower, foxglove and viper's bugloss.

- [Common foxglove: planting, care and poisonous parts](https://tuinontwerp.app/en/blog/common-foxglove) - Common foxglove (Digitalis purpurea) is a native biennial 0.3 to 1.5 m tall. Where it grows, what it costs, how to sow it and which parts are poisonous. (2026-09-28)
- [Viper's bugloss in the garden: identify, plant and price](https://tuinontwerp.app/en/blog/vipers-bugloss) - Viper's bugloss (Echium vulgare) is a biennial of 0.3 to 1 m with blue flowers from May to September. How to recognise it, plant it, its price and problems. (2026-09-28)
- [Wild parsnip in the garden: identify, sow and care](https://tuinontwerp.app/en/blog/wild-parsnip) - Wild parsnip (Pastinaca sativa): a native biennial 60 cm to 1.2 m tall, with yellow flowers July to September. How to spot it, sow it and handle its sap. (2026-09-27)
- [Great mullein: recognise, plant and care for it](https://tuinontwerp.app/en/blog/great-mullein) - Great mullein (Verbascum thapsus) is a native biennial up to 2 m tall. How to recognise it, where it grows, what it costs and what to do when things go wrong. (2026-09-28)

## See also

- [Plants](https://tuinontwerp.app/en/blog/category/plants)