Companion Plant Guide
Tomato
Attracts beneficial insects.
Herb · Umbellifer family
Parsley companion plants
Petroselinum crispum
What to plant with parsley, what to keep apart, and how to grow it — sun, spacing, soil and the reason behind every pairing.
Photo: Shaun Meintjes on Unsplash
Overview
Growing parsley beside the right neighbour
Parsley (Petroselinum crispum) is a herb in the Umbellifer family. Biennial herb with curly or flat leaves for culinary use.
Let a little parsley flower — the umbels feed the predators that clear your aphids.
Give plants 6–12 in in sun or part shade. Aim for well-draining, moderate fertility. In most gardens the crop sits in USDA zones 2-11 and is ready in about 70-90 days.
Grows well with
What to plant with parsley
The best companion plants for parsley in this guide are Tomato, Asparagus, and Rose. Each pairing below is a reason to share a bed — pest masking, roots that do not compete, or insects that hunt the pests drawn to parsley.
Asparagus
Pest deterrent for asparagus.
Rose
Beneficial insect attractor.
Parsley is also a good companion for
Pepper — Umbels draw in hoverflies and wasps that hunt aphids.
In the bed
How to grow parsley
| Sun | Sun or part shade |
|---|---|
| Spacing | 6–12 in |
| Soil | Well-draining, moderate fertility |
| Hardiness | Zones 2-11 |
| Days to maturity | 70-90 |
These notes sit beside the companion lists — they are how parsley actually occupies the bed, not a substitute for local climate.
- Soak seeds before planting for better germination
- Keep moist until established
- Harvest outer stems first for continuous growth
- Leave some plants for bees and butterflies
Questions
Parsley companion planting FAQ
What can I plant next to parsley?
Plant Tomato, Asparagus, and Rose beside parsley. Tomato: Attracts beneficial insects. Asparagus: Pest deterrent for asparagus. Rose: Beneficial insect attractor.
What should I not plant with parsley?
Parsley has no recorded antagonists in this guide — it gets on with most of the bed.
How much sun do parsley plants need?
Parsley plants want sun or part shade. Space them 6–12 in apart in well-draining, moderate fertility.
How long do parsley plants take to mature?
Most parsley plants are ready in about 70-90 days. Parsley grows in USDA hardiness zones 2-11.
Compare every pairing at a glance
Open the guide, pick parsley, and see what thrives alongside it — and what quietly holds it back.
Open the pairing guide