From 4.4k real designs
What to plant with Delphinium
These are what gardeners actually planted. We measured every Sow design containing Delphinium and ranked the plants that turn up alongside it far more often than chance would explain.

Used together in 50 designs — 14.16× more often than this plant appears in gardens generally.
Why it works: shares Zones 4–8 with Delphinium; wants the same full sun; blooms spring to summer to Delphinium's early summer.
Zones 4–10Care & prices →
Used together in 1.4k designs — 12.98× more often than this plant appears in gardens generally.
Why it works: shares Zones 4–8 with Delphinium; wants the same full sun.

Used together in 113 designs — 11.57× more often than this plant appears in gardens generally.
Why it works: shares Zones 4–8 with Delphinium; wants the same full sun; blooms late spring to Delphinium's early summer; fills in front of Delphinium.

Used together in 302 designs — 11.4× more often than this plant appears in gardens generally.
Why it works: shares Zones 4–8 with Delphinium; wants the same full sun; blooms mid-summer to Delphinium's early summer.
Zones 4–9Care & prices →
Used together in 64 designs — 9.89× more often than this plant appears in gardens generally.
Why it works: shares Zones 5–8 with Delphinium; wants the same full sun; blooms mid-summer to Delphinium's early summer.

Used together in 86 designs — 8.97× more often than this plant appears in gardens generally.
Why it works: shares Zones 5–8 with Delphinium; wants the same full sun; blooms mid-summer to Delphinium's early summer.

Used together in 84 designs — 8.81× more often than this plant appears in gardens generally.
Why it works: shares Zones 4–8 with Delphinium; wants the same full sun; blooms late spring to Delphinium's early summer; fills in front of Delphinium.
Zones 4–10Care & prices →
Used together in 161 designs — 8.8× more often than this plant appears in gardens generally.
Why it works: shares Zones 4–8 with Delphinium; wants the same full sun; blooms mid-summer to Delphinium's early summer.

Used together in 249 designs — 8.04× more often than this plant appears in gardens generally.
Why it works: shares Zones 5–8 with Delphinium; wants the same full sun; blooms mid-summer to Delphinium's early summer; fills in front of Delphinium.

Used together in 1.3k designs — 7.96× more often than this plant appears in gardens generally.
Why it works: shares Zones 5–8 with Delphinium; wants the same full sun; blooms mid-summer to Delphinium's early summer.

Used together in 121 designs — 7.67× more often than this plant appears in gardens generally.
Why it works: shares Zones 5–8 with Delphinium; wants the same full sun; blooms late spring to Delphinium's early summer; adds height behind Delphinium.
Zones 5–9Care & prices →
Used together in 435 designs — 7.67× more often than this plant appears in gardens generally.
Why it works: shares Zones 4–8 with Delphinium; wants the same full sun; blooms mid-summer to early fall to Delphinium's early summer; adds height behind Delphinium.
Method: we counted every Sow design containing Delphinium (4.4k of them), then scored each other plant by how much more often it appears in those designs than in designs generally (lift), requiring at least 40 shared designs. Ranking by lift rather than raw count is what stops the list collapsing into “the most popular plants”.
Delphinium pairing questions
What should I plant with Delphinium?
Across 4.4k real garden designs containing Delphinium, the partner that shows the strongest affinity is Pulsar Sweet Pea — it appears alongside Delphinium far more often than its overall popularity would predict. The full ranked list is above.
How was this companion list decided?
From data, not opinion. We looked at every Sow design containing Delphinium and measured which other plants appear with it more often than chance would explain (a lift score), requiring at least 40 shared designs so nothing here is a small-sample fluke. That is why the list reads like a coherent planting palette rather than a list of bestsellers.
Do companion plants need the same conditions as Delphinium?
Yes — that is the first filter. A companion has to share the hardiness range and light exposure, or one of the two will struggle. Each entry above states the zones it shares with Delphinium and whether it wants the same light; pairings that differ in bloom time or height are noted, because that contrast is usually the point.
Keep exploring
Try these pairings in your own yard
Snap a photo of your space and place Delphinium and its companions in it at true mature size — before you buy any of them.
