Dedicated Gardener

Dedicated Gardener is a Black Lion Collections achievement that requires players to collect a variety of seeds gathered from plants around Tyria. It is acquired by purchasing a Black Lion Garden Plot Deed. Unlocking a seed in the collection allows its purchase from any Gardener.

Achievement

Dedicated Gardener	Black Lion Collections	0
Collect all plantable seeds for your home garden. Seeds have a chance to drop while gathering from harvesting nodes that produce that resource. Resource synthesizers in Guild Halls and World vs. World don't create seeds.All things have a right to grow. Reward: Pack of Home Recipes Collection	Unlocked Garden Plot	0
	21 Seeds Planted	0

	Objective	Notes
1	Garden Artichoke Seed	Gathered from Artichoke
2	Garden Blackberry Seed	Gathered from Blackberries
3	Garden Butternut Squash Seed	Gathered from Butternut Squash
4	Garden Cactus Seed	Gathered from Cactus
5	Garden Cayenne Pepper Seed	Gathered from Cayenne Pepper
6	Garden Clove Seed	Gathered from Verdant Herbs or Mature Herbs
7	Garden Garlic Seed	Gathered from Herb Seedlings, Verdant Herbs or Cluster of Herbs
8	Garden Grape Seed	Gathered from Grapes
9	Garden Kale Seed	Gathered from Kale or Vegetable Plants
10	Garden Leek Seed	Gathered from Leeks
11	Garden Lemongrass Seed	Gathered from Cluster of Herbs
12	Garden Parsnip Seed	Gathered from Winter Root Vegetables
13	Garden Passion Fruit Seed	Gathered from Passiflora
14	Garden Potato Eye	Gathered from Potato
15	Garden Raspberry Seed	Gathered from Raspberries
16	Garden Saffron Seed	Gathered from Black Crocus
17	Garden Spinach Seed	Gathered from Spinach or Vegetable Plants
18	Garden Strawberry Seed	Gathered from Strawberry Patch
19	Garden Sugar Pumpkin Seed	Gathered from Sugar Pumpkin
20	Garden Tarragon Seed	Gathered from Verdant Herbs or Cluster of Herbs
21	Black Lion Garden Plot Deed	Bought from the Gem Store

Herb nodes can have different gathering results based on region, make sure you're gathering from the correct locations. See the node pages for details.
The Cluster of Herbs node needed for harvesting the Lemongrass Seed only spawns in three areas in Straits of Devastation, making it the hardest seed to acquire (depending on how lucky you are, of course). Acquiring the Garlic Seed before attempting the Lemongrass Seed is advisable, as both can drop from these nodes.
Many of the harvesting nodes in Central Tyria can be harvested several times in one day if you're struggling to get any of the seeds. The easiest way to go about this is to harvest them with different characters, but switching between different map instances can work in certain cases as well.