These items are parts of Kilmaresh Quest. First of all you have to obtain Ritual Scissors (can be found here).
You can obtain Veldt Flowers by using Scissors on Veldt Flowers (Object) .
Wild Desert Rose
You can obtain Wild Desert Roses by using Scissors on Wild Desert Roses .
Vial Of Cactus Milk
You can obtain Vial of Cactus Milk by using a Hand Auger (you can buy it from Npc in Thais for 25 gp) on Flowering Cactus.
Empty Honey Glass
You can obtain Glass Full of Honey by using an Empty Honey Glass on Honey Palms .
- Empty Honey Glass you can loot from: Black Sphinx Acolyte, Burning Gladiator, Priestess of the Wild Sun or you can buy it from the market.
You can obtain Tagralt Nugget by using a Pick (Enchanted) on Veined Stone .
- The pick can be used 3 times before losing the enchantment. Wait 10 minutes and it will regain it.
- Pick (Enchanted) we can get from Npc .