🌿 When to Plant Valerian

🌿 Herb
Cool Season

Perennial; roots used for calming supplements; tall plant to 5 feet; fragrant flowers

📅 Planting Calendar by USDA Zone

Select your zone to highlight your exact planting dates. Dates are calculated from each zone's average frost dates.

Find my zone
Zone Last Frost Start Indoors Transplant Direct Sow
Zone 2A May 30 Apr 4 May 16 May 2
Zone 3B May 15 Mar 20 May 1 Apr 17
Zone 4A May 8 Mar 13 Apr 24 Apr 10
Zone 4B May 1 Mar 6 Apr 17 Apr 3
Zone 5A Apr 25 Feb 28 Apr 11 Mar 28
Zone 5B Apr 18 Feb 21 Apr 4 Mar 21
Zone 6A Apr 21 Feb 24 Apr 7 Mar 24
Zone 6B Apr 10 Feb 13 Mar 27 Mar 13
Zone 7A Apr 5 Feb 8 Mar 22 Mar 8
Zone 7B Mar 28 Jan 31 Mar 14 Feb 28
Zone 8A Mar 20 Jan 23 Mar 6 Feb 20
Zone 8B Mar 12 Jan 15 Feb 26 Feb 12
Zone 9A Feb 28 Jan 3 Feb 14 Jan 31
Zone 9B Feb 15 Dec 21 Feb 1 Jan 18
Zone 10A Feb 1 Dec 7 Jan 18 Jan 4
Zone 10B Jan 15 Nov 20 Jan 1 Dec 18
Zone 11A Jan 1 Nov 6 Dec 18 Dec 4

Valerian is a tall, fragrant perennial grown for its roots, which are used in calming supplements. The flowers attract beneficial insects in droves.

Top Growing Tips

  • Grows to 4-5 feet tall — plant toward back of borders
  • Flowers attract cats similarly to catnip — protect if needed
  • Roots are harvested in fall of the second year for maximum potency
  • Attracts earthworms to the surrounding soil — excellent for soil health
  • Self-seeds freely; deadhead to control spread

Companion Planting

Good companions: most vegetables (beneficial insect attractor), lettuce, peas

Avoid planting near: Too-close planting where it will shade shorter crops

Harvest Timeline

Harvest roots in fall of year 2+; harvest flowers anytime for dried arrangements