Sunflower Garden Seed Mat Holland Bulb Farms 75704 This is how to collect my dahlia seeds., Now, dahlias are far easier to grow from a tuber, so not many people trying growing them from seed, but every single dahlia I have in my garden (except for my If youre wanting to collect seeds from your dahlias heres a quick tip on what to look for., Remember: , Not all flowers will be pollinated and make seeds. You can help the seed producing process by How Often to Water Succulents and How to Water Them