This housewarming invitation is drawn in monoline forest-green ink on warm cream paper, made to feel like a favorite letterpress card in your hand. A tiny cottage with a heart on its door shares a frame with a tall pine, a mailbox and a garden gate, all connected by one continuous loopy line — vintage botanical illustration meets cozy cottagecore. A matching guest page turns that ink language into a scene: your card hangs as a brass key-tag on a ring, a countdown reads as a keyring of four tags, sections sit in vintage-mat panels, and replies end on a dark mailbox-drop panel. It is a key-housewarming invitation in its truest sense — a front-door key is a motif everything else hangs from. It suits a housewarming party, a new-home celebration or an open-house afternoon for a family that just settled in, and it works as well for a city apartment as for a cottage with a garden. Sending it is fully digital: guests RSVP online with one tap, see a live countdown to your open house, get directions and an add-to-calendar link, and you receive every reply in one place, with gentle reminders for anyone who has not answered. A matching suite includes a welcome sign, a guestbook sign-in sheet and a thank-you card in that same hand-drawn style, so a whole housewarming feels like one set. One practical tip from your hosts: hang a string of warm lights on your porch and put a welcome sign by your door — guests arrive already smiling. Hand-drawn botanical housewarming invites like this one pair beautifully with a cozy fall or early-spring date, when low light through windows is doing half of your decorating.