There are 0 of the Flowering Harp. decor in game, and the reason is rather obvious.

It is a craftable item, and to make it you'd require 900 Devil's Claw, an October Item used to cure Rabies.

30 x Devil's Claw = Grapple Plant
30 x Grapple Plant = Flowering Harpagophytum
30 x 30 = 900

Devil's Claw costs 2BB so in order to craft a Flowering H. you'd have to spend 1800BB in October.

This seems quite unreasonable to me. I love crafting and hoarding items-- there are insect [3] decors that require 900 to craft, but those are found year round as free explore drops. Devil's Claw is limited from one month and cost event currency.

I do like having them craftable into something though, as I'm sure many people had leftovers after the event! But... 900 is a bit extensive.

I propose changing how it is crafted. Instead, you can get either Grapple Plant or Flowering Harpagophytum when crafting 30 Devils Claw.
The coding is already in place-- crafting Glossy Ibis or Rainbow Stones can both give a random decor.

EDIT: now that the crafting system was updated, we can make a recipe for Grapple Plant for 30 and another recipe for the Flowering Harp. for 30.

<3 thanks for your time & feel welcome to suggest other options