3 responses to “Rosmarinus officinalis ‘Trusty’”

  1. Beverley

    Rosmarinus officinalis – Z6 – RHS Index of Garden Plants, Griffiths

  2. Ron B

    Rating the entire species Zone 6 is definitely not accurate. “Cold hardiness varies considerably, depending on selection. In general, upright varieties are hardier, while prostrate ones (originally from Majorca and Corsica) are more tender, suffering damage at 20F/-7C or even higher” (Sunset WESTERN GARDEN BOOK). If it’s true that Rosmarinus officinalis ‘Arp’ is the “hardiest rosemary, taking temperatures as low as -10F/-23C” (Sunset) then even that one will not survive every winter in Zone 6.

  3. Amanda

    this picture is the most beautiful picture i have ever seen.

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