Companion Plant Guide
Tomato
Attracts beneficial insects.
Herb · Umbellifer family
Parsley companion plants
Petroselinum crispum
What to plant beside parsley, what to keep apart, and how to grow it — sun, spacing, soil and the pairings used in this guide.
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 strongest companions 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 parsley attracts.
Asparagus
Pest deterrent for asparagus.
Rose
Beneficial insect attractor.
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.
How much sun does parsley need?
Parsley wants sun or part shade. Space plants 6–12 in apart in well-draining, moderate fertility.
How long does parsley take to mature?
Most parsley crops in this guide mature in 70-90 days, in 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