Wildflower Seed Mix

[MPRC]

I found this stuff at the hardware store for 75% off. I'm still learning to be a tortoise flower botanist and I'll be looking it up when I get home but I wanted to see if anything jumped out as a danger. I didn't buy it yet just in case.
Off the top of my head I was thinking larkspur is a no no.

 

[MPRC]

So I came home and did my research and here's what I found:

Okay Flowers (Okay, Moderately Okay and Feed Sparingly)

• Bachelor Button
• California Poppy
• Baby's Breath
• Coreopsis
• Cosmos
• Chines Forget Me Not
• Sweet Alysum
• Sweet William
• Annual Mallow
• Purple Coneflower (Echinacea)
• Money Plant
• Clarkia
• Shasta Daisy
• Straw Flower
• Gayfeather

Do Not Feed List

• Rocket Larkspur
• African Daisy
• Corn Poppy (common poppy)
• Prairie Coneflower
• Black Eyed Susan
• Blue Flax
• Annual Lupine
• Scarlet Flax
• Columbine
• White Yarrow
• Catchfly (Bladderwort)

I couldn't find info on

• Indian Blanket
• Godeta

With that being broken down, is it worth the $4 to spread it in the back pasture where the tortoises don't have access so we have flowers next spring? It will supposedly cover 600sq feet and I could pick out/just enjoy looking at the toxic things, but at the same time I don't want to risk accidentally giving them something dangerous. What would you do?